An Uber driver who claimed the app was controlling him has admitted killing six people.
Jason Dalton pleaded guilty to fatally shooting six people on Monday in a five-hour murder spree in Kalamazoo, Michigan, on February 20, 2016.
The 48-year-old shot eight people before telling police that when he pressed a button on his phone screen, the horned cow head of a devil would appear and give him an assignment that he said would "literally take over" his body, local television station WZZM reported.
He said the difference between the night of the shootings and others was that an icon on the Uber app that is normally red “had changed to black”.
The shootings took place outside an apartment complex, restaurant and at a car park.
He had been approved as an Uber driver just one month before the killings.
In March 2016, Dalton filed a $10 million federal civil rights lawsuit against the ride-sharing company.
In April 2016, a judge ruled that Dalton was mentally competent to stand trial after psychiatrists determined he understood the charges against him.
Two months later, prosecutors said Dalton’s attorney, Eusebio Solis, told them the defendant intended to file a motion to use the insanity defence.
Mr Solis said on Monday that Dalton was pleading guilty against his advice.
After his guilty plea on Monday, Dalton faces a life sentence without parole, Kalamazoo Prosecuting Attorney Jeffrey Getting said in a statement.
