That is from Dianne Theodora Kenny, via Ted Gioia. Kenny notes:

For male musicians across all genres, accidental death (including all vehicular incidents and accidental overdose) accounted for almost 20% of all deaths. But accidental death for rock musicians was higher than this (24.4%) and for metal musicians higher still (36.2%).

Suicide accounted for almost 7% of all deaths in the total sample. However, for punk musicians, suicide accounted for 11% of deaths; for metal musicians, a staggering 19.3%. At just 0.9%, gospel musicians had the lowest suicide rate of all the genres studied.

Murder accounted for 6.0% of deaths across the sample, but was the cause of 51% of deaths in rap musicians and 51.5% of deaths for hip hop musicians, to date.