Here we have our second heavy metal star after Marilyn Manson. Dave Mustaine is not just the founder of the highly successful band, Megadeth, he's also a singer, songwriter, guitarist, and author. He was also the original lead guitarist of Metallica, however, he was fired from that gig due to his alcoholism, drug abuse, and aggressive behavior.
As we've seen with many child abuse victims, past trauma can often lead to problems in adulthood, particularly when it comes to anger management. In his book, A Heavy Metal Memoir, Mustaine details the physical abuse he suffered as a child. Thankfully, Mustaine seems to have dealt with his childhood trauma in a healthy way and now speaks out against sexual abuse and harassment. Maybe he found a healthy outlet in writing his memoir, or maybe leaving Metallica fueled it. Either way, it's great that he has worked through it.