Man charged in killing of Santaquin Officer ordered to stand trial
Curtis Booker, Daily Herald
A photograph of fallen Santaquin police officer Sgt. Bill Hooser sits in remembrance inside the Santaquin Police Department on Jan. 23, 2025. (Curtis Booker, Daily Herald)A man charged with aggravated murder in the 2024 killing of Santaquin Sgt. Bill Hooser has been ordered to stand trial.
Michael Aaron Jayne is accused of intentionally driving his semitruck into Hooser during a traffic stop on May 5, 2024. He faces two charges of attempted aggravated murder, a first-degree felony, and one charge of aggravated kidnapping, a first-degree felony, among 12 other charges.
Fourth District Court Judge Thomas Low determined in a court order filed Monday that there was sufficient evidence to move forward with the case on each charge held against Jayne.
In a lengthy summary of evidence presented as part of the bindover, Low recapped multiple witness testimonies of the event, as well as dashcam footage and a coroner’s report.
Evidence included testimony from Christina Hinckley, a woman who was initially traveling with Jayne on a cross-country commercial road trip.
Hinckley said she left the trip in Beaver following an argument with Jayne, but later that night, Jayne found Hinckley at a truck stop and threatened her with a knife and ordered her to get in the truck, court documents stated.
Hinckley testified about Jayne’s erratic and paranoid behavior which led him to report over a 911 call that bikers were chasing his semitruck, and that a person was on the top of the truck’s trailer, court documents said. Hinckley said Jayne was driving fast and dangerously.
According to court documents, a state trooper spotted the semi on Interstate 15 north of Nephi and followed it to exit 244 in Santaquin, according to the evidentiary review. Sgt. Hooser also followed the truck to the exit, and both officers turned their lights on after the semi drove through a stop sign at the bottom of the off ramp, driving through the intersection and up the I-15 on-ramp.
According to the summary of evidence, the semi stopped on the on-ramp, and the officers exited their vehicles and engaged in a conversation with the driver, identified as Jayne. Hinckley testified that at this time, she exited the trailer and walked to Sgt. Hooser’s vehicle, court documents said.
When the officer asked Jayne to exit the vehicle, he locked the door and started driving away. He then made an immediate U-turn and drove directly toward the three individuals, striking Sgt. Hooser, according to court documents.
Jayne’s defense argued the state failed to provide probable cause for the murder and attempted murder charges because it failed to provide evidence that Jayne acted intentionally or knowingly when he caused Hooser’s death or attempted to cause the deaths of the other trooper and Hinckley, court documents say.
“The court concludes the state has presented sufficient evidence to establish probable cause to believe that Mr. Jayne acted intentionally, despite any delusions he was experiencing,” Judge Low wrote.


