A California man arrested on Wednesday now faces a murder charge after authorities found a body they believe belongs to his girlfriend off a highway in Nevada.

Brent Clifford, 55, was booked Thursday on suspicion of murdering 48-year-old Patricia Portella-Wright, the Placer County Sheriffs Office announced .

Investigators found a womans body after using a drone to fly over a steep embankment off Mt. Rose Highway in Washoe County, the sheriffs office said. The local coroner has yet to formally make an identification.

Portella-Wright was last seen on Aug. 4, and she was believed to be with Clifford at the time of her disappearance, the sheriffs office said in previous updates . She was reported missing five days later after not showing up to work.

Authorities in Nevada said Clifford traveled from the Lake Tahoe area in California to Reno on Aug. 9, the same day that Portella-Wright was reported missing, according to reports by the Reno Gazette-Journal .