Patrick "Pat" Lachman (born in 1970) is an American heavy metal guitarist and vocalist. Biography Portland, Oregon native Lachman was a short-lived member of Dr. Mastermind, featuring former Wild Dogs vocalist Matt McCourt, before joining his brother, vocalist Tim Lachman, in another local band, Gargoyle, in 1988. Gargoyle would move to Los Angeles in 1990 where the band morphed into State of the Art, recording an acclaimed three-song demo before disbanding in 1993. The Lachman brothers next hooked up with Canada native Shane Gaalaas, then the drummer for Swedish guitarist Yngwie Malmsteen, and recorded another demo under the name Eleventh Hour. In 1996, Lachman and Gaalaas teamed up with former Last Rites and World in Pain members A.J. Cavalier (later to join SOiL) and Jeff Mohr to form Diesel and cut a six-song demo. Parting ways with Mohr and adding Rich Gonzales, formerly with Recipients of Death, on bass, the band would change their name to Diesel Machine in time for the release of their debut album, Torture Test, in 2000. By then, Lachman had already been picked as one of the guitar players for Halford, the solo band of then ex-Judas Priest vocalist Rob Halford. With Halford, Lachman co-wrote and recorded Resurrection (2000), Live Insurrection (2001), and another studio album, Crucible (2002). He also collaborated with Tommy Victor of Prong on the song "Initiation" which appeared on the band's 2002 100% Live album and was re-recorded as "Embrace the Depth" for Scorpio Rising. 2003 saw the release of a Halford EP titled Fourging the Furnace, released in Japan only. Lachman had already left the Halford band in November 2002 to join former Pantera guitarist "Dimebag Darrell" Abbott and his brother, drummer Vinnie Paul Abbott, in a new band called Damageplan as their vocalist. Their debut album, New Found Power, was released in 2004; in addition, the song "Ashes to Ashes", featuring Jerry Cantrell of Alice in Chains, appeared on The Punisher soundtrack. The band had recorded several songs for a second album, however, on December 8, 2004, during a Damageplan show at the Alrosa Villa in Columbus, Ohio, Darrell was fatally shot on stage by 25-year-old mentally ill ex-Marine Nathan Gale, who was shot and killed by police minutes later. After the untimely demise of Damageplan, Lachman put together a new band called The Mercy Clinic in 2005 with guitarists Brian Harrah (Professional Murder Music) and Josh Stinson (Drist),