When officers arrived at Davis' home, he was barricaded inside, Peterson said. Davis eventually exited the home through a back door, at which time officers saw that he was carrying a gun. At some point while interacting with Davis, officers opened fire.
"Officers were forced to take action to protect themselves and the neighborhoods around them," Peterson said.
Peterson did not have additional details about Davis' interactions with officers, or how many total shots were fired. She said Davis was only hit once, but she did not say where the bullet struck him.
Medical crews tried to save Davis but he died at the scene. A request for a medical helicopter was canceled.
Peterson said "multiple officers" were involved in the shooting, though she did not provide a specific number. Three officers were on administrative leave Monday morning, per standard procedure, Peterson added. The Tooele Police Department is investigating the shooting.
Davis did not have a history with the Grantsville Police Department, Peterson said.
A search of Utah court records shows Davis has a criminal record consisting only of a pair of misdemeanor convictions from 2004.
The first case, investigated by the Utah Highway Patrol, included charges for simple assault and domestic violence. Prosecutors dismissed the domestic violence charge when Davis pleaded guilty to assault.
In the second case, brought by Tooele city police and filed just days after the first, Davis pleaded guilty to damaging a communication device and prosecutors dismissed a trespassing charge.
A Tooele County Justice Court judge ordered Davis to spend five days in jail and pay more than $1,000 in fines for the two misdemeanor convictions.
The Salt Lake Tribune will update this story when more information becomes available.