As the sun sets in the next 45 `minutes or so. Temperatures a bill cooler today, 40s and 0s in the metro area. Farther to the northeast, even Colder Weather as some arctic air slipped into extreme Northeast Corner the state. 31 degrees right now up in sterling but thats not going `to be the prevailing air mass for us for the week. Instead, going to be back to the mild weather. Heart warming weekend for us but very cold conditions expected in the eastern part of the united states. Within the last hour, the father of a sixyearold boy killed earlier this week has been arrested. Today, the woman who says she `s the biological mother of that little boy shared her story. Sse gave thus photo of her son riley johnson. She says he was staying with his father when he was brutally killed on wednesday. Denver 7s Jennifer Kovaleski is live where it happened. Jen, she wants answers . Reporter eric, she wants to know how Something Like this could happen. Rachel johnson says sse is still in shock and