Avicii committed suicide with broken glass he used to cut himsel according to TMZ.
 They revealed that Multiple sources familiar with the circumstances surrounding the famous DJ's death revealed that  he did indeed took  his own life, too which his parents agreed to last week.
The sources revealed that the method of death was a shard of glass that caused massive bleeding. Two sources said Avicii broke a bottle and used the glass to inflict the fatal wound. One of the sources says it was a wine bottle.
Two sources confirmed that the point of injury was Avicii's neck but another strongly denies that, saying it was his wrist. But this news hasn't been confirmed yet