Trent Ferree

Maricopa County jail

The wife of a deputy was killed and their daughter injured when a man intentionally drove onto a sidewalk in Phoenix and hit them with his pickup truck, officials say.

It appears to have been a random act of violence.

Trent Ferree, 45, was booked into the Maricopa County jail on suspicion of one count of first-degree murder and three counts of attempted first-degree murder.

The names of the 47-year-old woman and 11-year-old girl weren't immediately released Thursday. Officials have said they are the wife and daughter of Steve Chervenaka, a sergeant in the Maricopa County Sheriff's Department.

Witnesses told investigators Ferree struck the woman and girl, then backed up his truck to strike the woman a second time Wednesday evening.

Witnesses dragged Ferree from his pickup and held him for police.

Ferree is accused of intentionally struck the woman and girl while they were walking on a north Phoenix sidewalk, police said.

They say victims didn't know Ferree and he didn't live in the area.