Bombing of Stonhenge Jewelry Store?

By an edhat reader

I was across the street at the Lobero Theater the night that someone set off a bomb in Stonhenge Jewelry Store, 1977, 1978? Do any of the oldtimers that lived in SB at that time remember any of the details, exact dates, etc? Just reminiscing about the old days and can’t seem to find any info on what happened. Any memories?