Colin Jeffrey Haynie pleads guilty to murder of family members

Colin Jeffrey "CJ" Haynie, 16, of Grantsville, Utah.

Grantsville, Utah: The Tooele County Attorney's Office announced on Facebook yesterday, Tuesday, July 19, that Colin Jeffrey "CJ" Haynie plead guilty as charged for the murders of his mother and three siblings, and the attempted murder of his father.


Haynie was charged as an adult and is scheduled to be sentenced on December 7, 2022.


The statement explains that because "Haynie was 16 years old at the time of the offense. the maximum penalty for each count is an indeterminate prison term of not less than 25 years and may be for life."


Prosecutors detailed during the hearing how Haynie had executed his family over a five hour period as they returned home on January 17, 2020.


On that day Haynie stayed home from school, loaded a firearm, and awaited the return of the remainder of his family.


The first to return home were his mother, 52-year-old Consuelo Alejandra Haynie and his 12-year-old sister Milan who are reported to have returned home at about 1 pm.  Haynie is said to have shot them multiple times in their heads, necks and upper bodies.


About an hour later his 15-year-old sister Alexis returned home and was similarly shot multiple times.


His 14-year-old brother Matthew returned home at 5:15 pm and was shot once in the head.


The final family member to return home was his father, 50-year-old Colin Haynie who returned at about 6 pm.


Haynie shot his father in the leg and a struggle ensued. Charging documents detail how Colin told "the defendant that the defendant's mother would be sad if the defendant killed him. He said the defendant told him that his mother and other siblings were already dead."


Eventually Colin managed to get the gun away from his son and a neighbor that happened by the house transported both to the hospital. After hearing Haynie state that he had killed his family, 911 was called and officers were dispatched.


Haynie was taken into custody at the hospital and has reportedly been uncooperative since.


Toole County Attorney Scott Broadhead said that it remained a mystery why Haynie seemed to willingly accompany his father to the hospital after the murders, and despite admitting to investigators that he intended to kill every member of his family except himself, has refused to divulge the motive.