Neighborhood lie a variety of metals. And and each yellow flag marks an item of interest. Most of this is probably gonna be names. Reporter but some may indicate a military explosive. It is possible. And thats what were trying to find out. Reporter the nearby hayden park on Green Mountain was used by the National Guard in the early 1900s for artillery training. Last year an investigation organized by the department of defense found park that had to be destroyed. Now investigators want to determine if there are any hazardous items in this decadesold neighborhood. Why warrant this done wasnt this done before this neighborhood was built . It goes back to how the government turned over property in the past. And the mistakes that were made at that point. Reporter the governmentcontracted crews will spend the next couple weeks marking yards before eventually explosives. Even though the yellow flags are littering these lawns now, it may not be as bad as it looks. I do not believe were going to find anything that poses an explosive hazard. Reporter and those yellow flags are gone now because crews are able to map that out. Officials are doing this because its better to be safe than sorry. Some neighbors we did talk to offcamera believe this is just a waste of taxpayer dollars. Digging, if it needs to happen in some of these yards, couldap couple weeks. Kelly werthmann, cbs4 news. The search for a driver who may have caused the death of a cyclist last night near the entrance to carter lake in larimer county. Troopers sate driver of a white sedan and small suv bumped the cyclist, jason holden, causing him to fall off the bike. He was hit by another car and died. The first driver left the scene. The latest on a 71yearold woman attacked by a teenager as he tried to help. She picked up a group of hitchhikers monday night in boulder canyon. This teenager here, Jeffrey Collins, later beat her. There is an active warrant out for his arrest. Tom mustin live at Boulder Community hospital tonight where that victim is recovering. Deputies do believe this teenager is dangerous. Reporter we knowha Jeffrey Collins had a previous record, after the attacks he went home, went to school and talked to his probation officer as if nothing had happened. And his apparent as have left that 71yearold woman fighting for her life here in a hospital. Im in apno over whats happened with her reporter Boulder County resident donna gayle is still stunned after the brutal attack on her neighbor, 71yea. Reporter monday night she picked up three teenaged hikers including Jeffrey Collins near her home on lefthand canyon drive. She brought them to her mountain cabin to wait for their ride. You cant be lost in this canyon without five people stopping to help. Reporter the three teens have been camping in the area. Inside the home without warning, collins struck her with a fire poker causing massive head injuries and multiple fractures. At one point there was some talk between y of possibly stealing her car. The others did not like that idea. But as it came as a surprise, the suspect blouft struck her in the head. Reporter collins has a priest records in colorado. He fled the scene and hitchhiked up the canyon. His friends ran to a neighbors house to get attack. Just a tragedy of some someone being repaid we kindness this way. And how everyone is should be considered dangerous. Donna says she and her neighbors will keep their doors locked until hes found. Id like to see the book thrown at him. Reporter tonight katie culpa is in the icu in serious condition. Her family has set up a go fund me page. Collins is still on the run. If you have any information, call the Boulder County sheriffs office. An update on a grass fire that got too close for comfort to some hokes in parker homes in parker. There was concern the flames would reach the homes but fire crews got a quick handle over, kept it to 3 acres. No injuries. Two construction workers are recovering after a nier a highrise downtown. The building downtown, 15th and california. On the 5th floor, sending out an awful lot of smoke seen all over downtown. Police shut down streets and the nearby light rail. Denver firefighters made quick work of the flames. A report of shots fired put four schools on lockdown early this morning. It turned out to be an attempted robbery at 32nd and clay. Everything back to normal by 11 00. But have not released any information on exactly who. Denver police will be firing shots in the montbello neighborhood on purpose. Its to test out the shotspoper system. The tech shotspotter system. It High Pressure system identify when shots really are fired. Andrea flowes has what everyone in flores has what everyone in that neighborhood needs to know tonight montbello will hear gunfire there. Is no reason to worry, its all part of a test designed to keep communities safe. From 8 00 to midnight tonight, Denver Police will be pulling the trigger in montbello. We are getting to locations where people just arent calling in shots fired in the neighborhood. When they do call in, generally theyre about a block and a half off of dpd says alerts bring them within 25 meters of a crime scene, allowing them to respond in less than a minute. Hes helping us get to victims, suspects on occasion, and the evidence, the indicatings left on the scene. Reporter and dpd says residents tend to calm their dshgsz pd says dpd says shotspot seran effective they encourage calls from the community. The snow guns were out at arapahoe basin. The resort started testing them yesterday. Overnight temperatures not quite cold enough to start make snow. But that might change this weekend. Chris spears with the mobile weather lab in georgetown. Well be feeling the cool down here in the city too reporter absolutely. Were feeling it now we had to break out the light jackets. Its a little chilly in georgetown, 59. 6 degrees. Were fluctuating up and down with a couple of rain showers. As we turn to fall the jet stream will start having more and more of an impact on colorado. Pressure tracks into the northern and central rockies. Behind it, a cold front will sweep into colorado, sometime late thursday into early friday, bring enough cold air that some of our western mountains may pick up a little light snow as we head into the weekend. Reporter out here live, were at the georgetown overlook. And the i70 corridor from Idaho Springs to the tunnels is amazing right now with fall color its light rain showers on radar. And they are rolling toward denver. Unfortunately they fizzle with all that dry air you have down there. But this is just an appetizer to the big weather change brewing, starting tomorrow. Right you are, chris were gonna see a big change. A few scattered showers now. But were watching a cold front to the north its gonna come down, sweep through the area. Yesterday was 90. It could be 30 degrees colder Colorado Police department its calls. That could mean an officer doesnt respond at all. How the chief is defending the change. How a vote today could end Colorado Springs police is changing the way its crimes are reported in an effort to help with its staffing issues. Starting on sunday, some crimes like property theft will only be reported online. Other crimes can only be reported over the phone. If your home is broken into, service officers, not patrol officers, will be the ones to respond. It does increase the respse up for something faster, that would be an improvement. He wants to free up officers for emergencies. Police will continue to respond to active crimes where the suspect is on the scene in all emergencies. Colorado considering allowing post Traumatic Stress disorder to be treated with pot f. So colorado would join 18 other states that already consider ptsd a condition legally treatable by marijuana. The states medical pot law treatment. But a state panel of lawmakers say the legislature shall consider it. Reporter veteran greg duran suffers from post Traumatic Stress disorder and uses pot to treat his siments symptoms, just not symptoms, something not legal under current colorado law. Were not gonna give up. Reporter he can buy recreational pot, but not medically. Weve tried everything under the state guideline, under the medical board. But we keep getting denied. Reporter after several failed attempts to get that changed, sprpz of medical pot for ptsd are going back to state lawmakers. In committee today, supporters testify this issue is not going away. We have been fighting to get ptsd added to the list of qualifying conditions for how many years now . Im gonna say flat out, reporter they do i understand the police of sufferers and scientists to add ptsd to the list of eight other conscience already approved for medical marijuana treatment. They havent changed that position. There is insufficient medical evidence that marijuana is an effective treatment. Reporter 2017 is looking like pot issues will again be a major fight inside the capital. The ptsd medical pot bill will be discussed session. New information on the effort to reduce traffic near pop urm trails in springs. Double parking fees at the base of the trail and the famous climb. Park will go from 20 a day to 10 to 20 effectively immediately. Rush hour traffic this morning. A mamma moose and her calf ran through town near the Pinewood Village apartments. Bruce mccowan is a Maintenance Worker there. He sent us this video of the pair after checking out the complex. The two headed back to the forest. Papa moose followed a few minutes later. [ laughter ] live in the corner lot. [ laughter ] doppler 4,000 show we go had some showers, heading for denver, then they gist dry up. Chris spears said, everything just dries out. We have seen some thunderstorms along the southern border, and thats about it. Here comes this cold air. And this is slowly gonna nudge that stationary front out of the way and push down into our state. And thats really gonna chill us from about 30 degrees over what we saw we had some clouds before. The sun goes deny. Some might see an isolated shower somewhere around the state overnight. And things clear, sunny to partly sunny skies. Showers move through. Some showers at the higher elevations. As we get into friday night, saturday, clear skies here. Look at mountains, the county here, the blue and white represent snow, the blue is the heavier of the snow. Jackson and grant counties up there, and it hangs very heavy rain but all to the east of colorado. High and dry over the east. Today 84 and 84 60 and 61 were the lows. 76 and 46 are normal. 89 and 27 the records. 76 and 81 right now. Still pretty nice. Warm at the airport. South 7 for the winds. 20 humidity. Weve got a falling barometer. Look at this shot as the green goes gold over Red Mountain Pass this is from judy williams. The Lake Recreation area. Gold popping up on the far mountains. Look at this from mike, theres a stellars jay. Mostly 50s and low 60s over the eastern plains, 4 for the mountains, and tomorrow a day kind of like today. 70s, 80s, 90s over the eastern plains. 60s and 70s for the mountains. Skwaez, low 80s to the west. Sheer your denver here is your denver forecast. For tonight, maybe an storm, then well clear the skies out, 60 and 57 the overnight lows. Tomorrow, partly cloudy, again maybe an isolated storm. And much like today, well be in the mid80s. Friday well see 81 degrees with an isolated storm. 66 on saturday. And look at sunday, 59 degrees. 65 on monday, isolated storm. Broncos taking the show on the road. Were gonna have great football weather here. Music was blaring at conditions. The game before the ,, know whats in this box . Well, in case your crystal ball is broken, heres a hint. But theres also a commitment to this community. See, at xcel energy this is our hometown. So, were not just about making a living here, were about living here. Aw, i wish i had wings. In our community, were always delivering. Xcel energy. 400 yards and 241st downs last week, but they struggled to finish drives. I think were doing some good thing. Were really, really close, knocking on the door to be a special group. Finishing those drives. But we have had a good bit of success too, sch encouraging. And im excite to be a part of it, fix these thing, and is hopefully just get better and move forward. I expect him to be the same trevor hes always been. One thats been making a lot of plays. The least surprising news of the day, von miller named defensive player of the week. Its the third player of the week honor for von in his career. The broncos investment in miller already paid off. Von is a beast, man. Hes a beast. Hes worth every bit the 114 million he got . [ laughter ] i saw a different von come to Training Camp. He works harder. Its almost like he got his money and said now i gotta level up. In my eye, hes definitely by far the best defensive player in the league, man. It impacts the game more than any other rockies, and this not at all related to the anthem protest, but in baseball two players will often have a contest to see who can stay standing the longest after the national anthem. Coolers estivez in a showdown with cooler martinez today. Carlos got some help. They took it up to the first pitch, but estivez did actually quit first. Cargo was walked to load more on the pitching around cargo in just a second. Herman marquez got his first start today, second youngest rockies flyer get a win. 3run home run as the rockies ran away with this one to avoid the sweep. 111 the final. About that nolan grand slam . To walk cargo to get to nolan . Throw him a pitch over the plate. Nolan is good at baseball. Who would you want on the line to be atbat . Vote at cbsdenver. Com. World cup of hockey, Team North America with sweden this afternoon. Puck finds its way to the avs, nate mcinnon sho off. 43 win, keep their hope so alive, and advancing to the next round. Avs veteran who is arent playing in the world cup report for Training Camp tomorrow. Spectacular goal there. And duchene had 2 for team canada. Those activity trackers are spotty rain showers in colorado on this wednesday and the mouz. For the weekend mountains. For the weekend, rain in parts of the high country will be turning to snow chris spears is live in georgetown with the mobile weather lab. Hard to believe its been so mild lately. Reporter and 90 degrees in denver, monday and tuesday. By the end of the week, wait till you see eds 5day forecast. Let me show you this fall color. Were at the overlook eastbound looking in georgetown in the higher elevations, earlier on our drives up here, look at this video, rob mcclure i ran through a handful of intermittent showers on i70, and we saw some showers brew on the west side and roll over to the east side right on top of us were recovering a little bit after those quick showers. There goes the showers roaming toward denver. Kim and karen jim and karen, theyre not going to last too long. The bigger story, whats coming forward, and friday into saturday wait till you see eds forecast, Pumpkin Spice lattes and is sweaters [ laughter ] happening now, there are more protests in charlotte, north carolina, tonight, following the Deadly Police shooting of a black man. You ca the streets. Police are out in full riot gear just in case those protests turn violent for the second night in a row. John champion is live in charlotte, and the mayor is urging everyone to stay calm. Reporter good evening, and so far protests here have remained paechl over my shoulder. You can peaceful. You can see hundreds taking part in a candle light vigil at this hour. And just a moment ago,