Canadian coroner says actors death was "a most tragic accident"
Woman is arrested following the incident, which left Chambers with a bruised rib muscle and nerve damage
Police were alerted after the frontman revealed links with Norwegian mass killer Anders Behring Breivik
New and classic releases to be made available on the tape format for one day only
Rihanna, Katy Perry, Taylor Swift and fellow 'Glee' actors all pay their respects
Two men stabbed at event, which took place at Queen Elizabeth Olympic Park
Actor was alone when he died and police have found no signs of foul play
Songs in a minor key can also apparently help to alleviate negative emotion