Marcus Karma News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> i'm craig melvin. >> and i'm natalie morales >> and this is dateline. ♪ ♪ ♪ >> he was definitely charismatic. >> he was the new kid in town, super popular, all about adventure. >> this kid was like, awesome. >> he jumped right in th culture. >> he liked to show off to the girls. >> they were the neighbors just down the block, of family in fear. >> they had their vehicles broken into, she was scared. >> someone had been sneaking into their home and now someon was in their garage. >> i'm sitting there panicking he's coming after me >> in a flash, it was over >> that charismati...

And after eight hours over two days, they returned to court. >> we, the jury, find the defendant, marcus hendrik karma, guilty. [ cheers ] >> the courtroom erupted in relief. his parents still felt raw over his death. >> nothing brings darren back, so it's heartbreaking someone felt compelled to do this. >> would you be host to another foreign exchange student? >> no. my heart is too broken. i couldn't do it. >> two months after the verdict, marcus karma addressed dearen dede's family at the hearing. >> i took another man's life, and i'm sorry i can't change that. i did what i felt was necessa...

See. >> all of that was connected through a smartphone app so when the motion sensors were triggered, an alert would allow them to view live video of their garage. that saturday night karma said they were trying to relax after putting their son to bed. >> i had recorded the movie "lincoln." we were watching that. about one-third of the way through that, i'm not sure what the time was. it was dark outside. you know, we went outside and had a smoke in the garage like we always do. we would usually leave the garage door open to air it out. >> but five minutes later an alert from the motion sensor...

He knew there was a kid coming in his garage. he had a .12 gauge in his hands, and he waits. >> to counter the defense's suggestion to suggest that darren was a ring of thieves targeting marcus karma, investigators tracked down the tooenl teens who had hit karma's garage. the ones who took the cash, credit cards, and -- >> he had a big bong and a jar of weed and some alcohol. >> did you know a man named darren? >> not personally, no. >> to the best of your knowledge, was he involved in a burglary ring? >> no. >> so did karma really fear for his life that night? prosecutors said ballistics told...

Door, and i can't tell if it's locked or unlocked, and i'm starting to shaichke at that po. the adrenaline is coming. oh, my god, this guy came back to the house. >> karma said his wife stayed back while he went out the front door and turned towards the garage. >> a few quick steps around my front. saw where my truck was parked with my butt touching my grill bar. that's where i stood. then she flipped on the light. >> karma told the detectives he was blinded by the sudden light and realized the only way for the intruder to get away was to go past him. then -- heard something move, like a piece...