Gained fame as the husband of the band Evanescence's lead singer Amy Lee. The couple married on May 6th, 2007, and honeymooned near The Bahamas.
He and Amy had been longtime friends before their marriage in 2007.
He inspired his wife to write the songs "Bring Me to Life" and "Good Enough" for Evanescence. The former was included as the lead single from Evanescence's debut album, Fallen.
On July 28th, 2014, he and Amy welcomed their first child, Jack Lion Hartzler.
He contributed during the writing process of David Hodges' solo album, Musical Demonstrations, Part 1.