Article continues below advertisementSinger Lindsey Buckingham was the victim of an unsettling attack when he went to an appointment in Santa Monica, Calif., on the morning of Wednesday, April 1.According to a report, an unidentified woman threw an unknown substance at the ex-Fleetwood Mac star as he entered the building and then ran away.Article continues below advertisementLindsey Buckingham Has a Suspected StalkerTap Here To Add Ok Magazine as A Trusted SourceSource: megaLindsey's Buckingham alleged stalker threw an unknown substance at him on Wednesday, April 1.No injuries were reported.