Yup. Pretty wierd. Here's some info:
After years of illicit drug taking it's ironic that the prescription drug Heminevrin, prescribed to wean Keith off alcohol, would be the drug that killed him. A post mortem confirmed there were 32 tablets in his system at the time, 26 of which were undissolved. The conspiracy theorists tell us that he was too experienced a drug user to have accidentally overdosed, that his death was in fact a suicide. Some, including John Entwistle, believe Moon choked to death, that his muscles were just too relaxed to vomit. Most people however don't believe it was suicide, citing Keith's love of life and the fact that he never thought much about even what he was taking, let alone how much (after all this is the same guy who gulped down a horse tranquilizer that put him out for 2 days!).
On September 6, 1978 Moon attended a party thrown by Paul McCartney in honour of the movie "The Buddy Holly Story". It would be his last night out. Sometime in the late afternoon of September 7, 1978, Keith John Moon died in flat #9, 12 Curzon Place, London. Ironically, it was the same flat that Mama Cass died in years before. One of rock's most talented and exciting drummers, and arguably its' greatest personification of its excesses, was dead.
From this cool site:http://www.classicrockpage.com/rrheaven/kmoon.htm
I like the videos.