FALLBROOK, Calif. (AP) - A body was found Tuesday in Riverside in the search for the missing wife of a Marine, authorities said.
However, the body has not been positively identified as 22-year-old Brittany Kilgore, who has been missing since Friday night, San Diego sheriff's Capt. Duncan Frasier said.
In addition, a woman has been arrested on suspicion of murder in the case.
The news came after it was announced that the missing woman's estranged husband - a Marine in Afghanistan - will return to California on emergency leave as authorities try to determine whether she met with foul play.
Brittany Killgore, 22, went missing after filing for divorce last week from Lance Cpl. Cory Killgore.
Her cellphone was found in the Gaslamp District of downtown San Diego, but authorities said it was unclear whether she actually left Fallbrook.
Investigators said she had been seen with another Marine named Louis Ray Perez, 45, but authorities have not disclosed the nature of their relationship.
Cory Killgore, 22, could be back at Camp Pendleton by the end of the week, said 1st Lt. Alex Lim, a spokesman for the 1st Marine Division.
"One of his loved ones is missing and I can only hope the best for him," Lim said.
Authorities have said Killgore is not suspected in the disappearance of his wife.
"We do believe that there is a strong likelihood that Brittany was the victim of foul play," sheriff's spokeswoman Jan Caldwell said.
Brittany Killgore lives in northern San Diego County, not far from Camp Pendleton.
Perez was arrested Sunday on an unrelated charge of possessing a stolen AR-15 rifle from Camp Pendleton. He remained jailed on $500,000 bail and has refused to cooperate with investigators.