Utah man pleads guilty to killing mother, 3 siblings

SALT LAKE CITY (AP) — A Utah man has pleaded guilty to fatally shooting his mother and three siblings in 2020, when he was a teenager. Colin “CJ” Haynie pleaded guilty Tuesday to four counts of aggravated murder and one count of attempted murder. He was 16 at the time, but charged as an adult by prosecutors because of the seriousness of the Jan. 17, 2020, crime. He is now 19. Authorities say he killed his mother and one sister as they returned from her school pickup. He then waited for two more siblings to come home and killed them. Authorities have said they don’t know the motive for the slayings.