How did Sean Sumner of the band Gwar die?

Answer 1

That's what the Cambridge police wanted you to think. In fact, he died from a reaction to pepper spray. His face had been severely beaten by patrolmen, and he was sprayed while handcuffed to the booking desk. EMTs were called but turned away at the door of the lockup by police who said Sean was ok. Autopsy results were covered up. Police Advisory Board would not investigate. Search farther for protest marches and local Cambridge paper articles.

Police rules required victim of pepper spray to be taken to hospital within minutes of spraying, so they covered up what they could.

Answer 2

Sean Sumner died in 1996 from hanging himself.