RIP Jani Lane

Investigators searched for clues Friday as to what killed Jani Lane, the former lead singer of the metal rock band Warrant, and his family and friends prepared for a pair of memorial services to honor the rocker.

Lane, 47, was found dead Thursday in a hotel room in the San Fernando Valley, which is north of downtown Los Angeles.

Coroner's officials did not determine a cause of death after an autopsy Friday, but said they would wait to see the results of toxicology testing that could take up to two months.

With his long blond hair and tight leather outfits, Lane embodied the excess of 1980s "hair metal" rock bands. He joined Warrant in 1984 and wrote such hits as "Heaven," ''Down Boys" and "Cherry Pie."