(AP) — Brent Hinds, the former singer-guitarist for the Grammy-winning heavy metal band Mastodon, has died in a motorcycle accident in Atlanta, the band and authorities said. He was 51.

Hinds was killed while riding a Harley-Davidson motorcycle late Wednesday night when the driver of a BMW SUV failed to yield while making a turn, according to Atlanta police. Hinds was described as “unresponsive” at the scene. An autopsy concluded Hinds, whose legal first name is William, died of “multiple blunt force injuries.”

“We are heartbroken, shocked and still trying to process the loss of this creative force with whom we’ve shared so many triumphs, milestones, and the creation of music that has touched the hearts of so many,” the band said on social media.

Mastodon had three albums rise into the Top 10 of the Billboard 200 chart and two that topped the Rock Album chart — “Emperor of Sand” in 2017 and “Once More ’round the Sun” in 2014.

Hinds co-founded Mastodon in 2000 with bassist Troy Sanders, guitarist Bill Kelliher and drummer Brann Dailor. Mastodon’s third studio album, 2006’s “Blood Mountain,” was their first to reach the Top 40, peaking at No. 32 on the Billboard 200.