The band consists of vocalist Tyler Miller, guitarists Sean Delander and Andy Marsh, bassist Kevin Butler and drummer Jesse Beahler.

Formed in 2006, in the Western Sydney locality of Blacktown, the group originally consisted of vocalist Brendan van Ryn, guitarists Gary Markowski and Sean Delander, bassist Josh King, and drummer Lee Stanton.

They quickly gained a loyal fanbase among local deathcore fans in Western Sydney due to their highly energetic performances, and went on to independently tour the east coast of Australia.

[1] Following the breakout release of Infinite Death and two years of relentless national touring, it was announced in 2008 that van Ryn was departing from the group.

It was initially claimed that he left the group due to creative differences, namely guitarist Gary Markowski stating that his voice didn't fit into the band's later, more death metal-inspired sound.

[7] However, McMahon, the group's now former vocalist, explained in 2013 that van Ryn was removed because "he couldn't sing [anymore] and he had a massive attitude problem.

"[8] Thy Art Is Murder searched for a year for a new vocalist, until finding Chris "CJ" McMahon from Sydney metalcore band Vegas in Ruins.

[citation needed] Bassist Mick Lowe replaced King shortly before the band began tracking demos for their first full-length album The Adversary.

[9][10] Thy Art Is Murder supported the release of The Adversary with Canadian deathcore band Despised Icon's Australian leg of their Farewell Tour, which also included The Red Shore.

Kevin Stewart-Panko of Decibel Magazine awarded Hate a score of 1 out of 10 and criticizing the band for not going "out of their way to push the envelope or add a modicum of originality or value to metal as a whole.

Following their second European tour in February and March[15] Thy Art Is Murder signed to Nuclear Blast on 24 January 2013 for distribution of Hate outside Australia.

On 13 March 2013, Triple J announced that Thy Art Is Murder would be headlining the Hate Across Australia tour with Cattle Decapitation, King Parrot and Aversions Crown.

[16] On 11 April 2013, Sumerian Records officially announced that the group had just lost the opening support on the United States' annual Summer Slaughter Tour.

The bill featured support from I Declare War, Fit for an Autopsy, The Last Ten Seconds of Life and Kublai Khan with many dates selling out.

The band made Australian news headlines in late February 2014, when McMahon encouraged fans to get onstage during their set on Brisbane leg of the Soundwave Festival tour.

[23][24][25] Promoter AJ Maddah later tweeted his decision to take the band off the rest of the tour calling them "disrespectful arseholes" and claiming that McMahon had told the crowd that "there are thousand of you and dozens of security.

[29] They also supported Born of Osiris on their Tomorrow We Die Alive tour in November 2014 in North America with ERRA, Within the Ruins and Betraying the Martyrs.

On 31 March 2015 it was announced that Thy Art Is Murder's then-upcoming album would be titled Holy War and would be released on 30 June in North America via Nuclear Blast Entertainment.

On 14 January 2017, former vocalist McMahon rejoined the band onstage at Unify Festival in Tarwin Meadows, Victoria, where he confirmed his return to the group, and that the show was for the fans a "celebration that is me coming back to join my brothers in world domination.

[33] In an interview in October 2017, guitarist Andy Marsh confirmed that if McMahon had not returned, they would've recorded Dear Desolation with their at the time fill-in vocalist, Nick Arthur (of Molotov Solution).

[41] On 23 September, one day after the release of Godlike, Thy Art Is Murder revealed on social media that they fired vocalist CJ McMahon without his knowledge.

According to a statement from the band, the split is partially due to McMahon's "recent anti-trans comments", which they note were only a symptom of a larger problem.

[48] Former vocalist CJ McMahon mentioned in interviews with Bluestribute TV and Aggressive Tendencies that the band members, individually, have different inspirations that influence their writing and performance style.