Wednesday, January 9, 1991 Def Leppard guitarist found dead by girlfriend LONDON -- Steve Clark, the 30-year-old guitarist for the hard-rock band Def Leppard, was found dead at his London townhouse, Scotland Yard said yesterday. Authorities said they were investigating the cause of Clark's death, but added there were no obvious injuries and no suspicion of foul play. Clark was found by his girlfriend on the living room floor at his home on Old Church Street, in the fashionable Chelsea district of London, police said. In New York City, Cliff Burnstein, one of Clark's managers, said they had just got word of the musician's death. "The cause of his death is still unknown," Burnstein said. "They're doing a post mortem now." An autopsy will be conducted today. He said the group had been recording in Ireland, and was taking a break in London. Clark was a founding member of the multi-million-selling band formed in 1978. Clark was in Toronto last year for the 1990 Juno awards, where he was a presenter. In 1989, an American survey estimated that the band was earning $28 million U.S. a year.