Dalton, 48, was guilty last month of killing six people and injuring two others in a series of random shootings around southern Michigan city over five hours on February 20, 2016. In between the shooters he picked up and dropped passengers as an uber driver.
The shootings took place on a Saturday night in three different parts of Kalamazoo. He first shot Tiana Carruthers, then 25, in front of his children in a parking garage complex.
Four hours later, he killed Richard Smith, 53, and his son Tyler Smith, 17, at a car dealer. Then he opened fire in the parking lot of a Cracker Barrel restaurant and killed Barbara Hawthorne, 68, Mary Lou Nye, 62, Mary Jo Nye, 60 and Dorothy Brown, 74, and injured a 1
4-year-old girl.  "It was very deliberate murder. This was not hurried in any way, form or form," accuses Jeffrey Getting said at the time. "They were intentional, conscious and I would not say unforgettably done. Cold done is what I want to say."
The shootings focus on Uber and its protocol for driver approval considered independent contractors and not employees. A CNN survey last year showed that the shipping companies Uber and Lyft have approved thousands of people who should have been disqualified for criminal records, according to state agencies and court cases.
Dalton passed a background check and had no criminal record.
"For all purposes and purposes, he was your average Joe," said Kalamazoo Public Safety Chief Jeff Hadley at that time. "This was random."
By Tuesday's judicial hearing, family members gave statements to the victims when Dalton sat quietly in an orange jail suit.
Michigan does not have the death penalty, and state law mandates the first degree murder is punished with life in prison without the possibility of parole.
Emily Lemmer talked about the difficulty of living without her father and brother, especially during her recent wedding.
"Every day since I woke up to half my family to be gone has been a living nightmare," Lemmer said through tears. "Nothing feels right, and every day is a constant painful battle, the same cycle of waking up to the chilling reality that half my family is gone."
Carruthers, who survived being shot, urged Dalton to look at her during the victim's impact statement. A defense lawyer protested, but the judge informed the court that Dalton's participation in the victim's consequences – or lack thereof – would be noted.
Dalton's interrupted presence Tuesday as opposed to a hearing months after the shooting, when he interrupted Carruthers with rambling statements. He later tried to stand up for the court, and legal officers hindered him and dragged him out of the courtroom.