Marcelo Marquez charged with murder of Sacramento County sheriff's Deputy Danny Oliver and Placer County sheriff's Det. Michael David Davis Jr.

A Utah man accused of a rampage in which two Northern California sheriff’s deputies were killed was booked Saturday on charges of murder, attempted murder and carjacking early Saturday morning.

The man’s wife, who allegedly accompanied him for much of Friday’s six-hour binge, was charged with attempted murder and carjacking. Both were held without bail in the Sacramento County jail.

Marcelo Marquez, 34, of the Salt Lake City suburb of West Valley, is accused of killing Sacramento County sheriff’s Deputy Danny Oliver and Placer County sheriff’s Det. Michael David Davis Jr. Authorities said Marquez used an AR-15 type assault rifle to kill the officers and wound another deputy and a civilian.

His wife, Janelle Monroy, 38, was carrying a pistol in her purse but is not believed to have fired the weapon, authorities said.

A man who identified himself as Marquez’s brother told a Sacramento TV station that earlier in the week Marquez pulled a gun on him and demanded money. Hector Monroy told KXTV-TV that his brother was high on drugs and had a bag of weapons.

“He said he was in trouble,” Hector Monroy said. “He told me not to ask any questions and just give him money.”

Sgt. Lisa Bowman of the Sacramento County Sheriff’s Department said Saturday that neither Marquez nor Janelle Monroy had an arrest record in the area.

Friday’s assaults began when Oliver went to the parking lot of a Motel 6 to check on a suspicious vehicle. Sheriff’s officials said Marquez fired the rifle from the car, striking Oliver, a 47-year-old father of two, in the forehead.

Marquez and Monroy fled and tried to carjack a driver about a mile away, authorities said. The man, identified as Anthony Holmes, refused to turn over his keys and Marquez allegedly shot him in the head. The couple eventually drove in yet another car to Auburn in Placer County, where they were confronted by Davis and another deputy, Jeff Davis. Authorities said Marquez shot both men. Jeff Davis was wounded in the arm and Michael Davis, 42, later died.

Marquez ran away was later arrested in a residence, authorities said.

It was not immediately clear whether Marquez and Monroy had attorneys. Both are due in court Tuesday.