Was Michael Jackson killed by a painkiller injection?

The world of music and entertainment was in mourning today after singer Michael Jackson collapsed and died at his Los Angeles home.

Jackson, 50, suffered a massive heart attack and stopped breathing last night, although the exact circumstances of his death are not yet known.

His personal doctor was with him at home when he collapsed but could not revive him. Unconfirmed reports claim the catastrophic heart attack could have been triggered by a painkiller injection. 

Sources close to the Jackson family had recently told the Daily Mail how the singer was addicted to painkillers and that they had taken over his life. One side effect of their abuse is cardiac arrest. More+images...

See also:

1. Michael Jackson and Beat It...
2. The tragedy of Susan Boyle...