Jason Dalton's surprise move came more than three years after shootings, which occurred over the course a few hours in and around Kalamazoo. Dalton pleaded guilty to murder and attempted murder over his attorney's objections, triggering a mandatory sentence of life in prison with no chance for parole.
"I've wanted to do this for quite a while," Dalton told a judge.
The 48-year-old Dalton answered "yes" to a series of questions, admitting that he shot eight people at three locations. After his arrest, police quoted Dalton as saying a "devil figure" on Uber's app was controlling him on the day of the shootings.
Four women were killed in the parking lot of a Cracker Barrel restaurant: Barbara Hawthorne, Dorothy "Judy" Brown, Mary Lou Nye and her sister-in-law, Mary Jo Nye. Rich Smith and his 17-year-old son, Tyler Smith, were fatally shot while looking at a pickup truck in a dealer's lot.
A girl who was 14 at the time was shot in the head during the restaurant shooting and survived. Another woman was injured in a residential area.
Dalton had been deemed competent to stand trial and last week dropped an insanity defense. In court, he didn't explain why he randomly shot eight people.
Dalton, the father of two children, had worked as an insurance adjuster and had no previous criminal record before the shootings.
Prosecutor Jeff Getting said the motive behind the shootings is a question that "haunts us."
"Everybody wants to know," he said during a news conference after the court hearing.
Defense attorney Eusebio Solis said he advised Dalton not to plead guilty. But he said his client wanted to spare families more grief during a trial.
"I've been practicing law for 30 years and have never pleaded to life in prison without parole," Solis said outside court.
A gun shop owner said Dalton bought a jacket with an inside pocket designed to hold a gun just hours before the rampage. Shop owner Jon Southwick recalled Dalton "laughing and joking," and giving a "one-armed hug" to the manager before making the purchase.
Following the guilty pleas, Getting praised investigators and others who helped during the case, especially Alexis Cornish. She was dating Tyler Smith and was in a vehicle when he and his father were shot while looking at pickup trucks.
Cornish was "extraordinarily brave" to immediately get a phone from her boyfriend's pocket and call 911, the prosecutor said.