Authorities in San Diego County are searching for a missing woman with Alzheimer’s disease who is the mother-in-law of Megadeth frontman Dave Mustaine.
U-T San Diego reports 75-year-old Sally Estabrook was last seen Saturday at an RV park and campground in Julian.
Search-and-rescue teams from four counties and the U.S. Border Patrol fanned out Tuesday (Oct. 7) in an area near state Route 79 to look for her.
Sheriff’s officials are asking nearby business owners to look through surveillance footage.
Estabrook is the mother of Mustaine’s wife, Pam.
The metal singer and guitarist posted this to Twitter on Monday:
Please send good thoughts to Pam, and prayers from those of you who pray, as we search for her mom.
— Dave Mustaine (@DaveMustaine) October 6, 2014
Megadeth’s latest album, Super Collider, came out last year.