 Warren Ellis took over the title in 1999 , after his work on Transmetropolitan which had moved to the Vertigo imprint , following the closure of Helix Comics . He was meant to become a full @-@ time writer for several years , as Delano , Ennis and Jenkins before him , but left the title early after DC refused to publish the story " Shoot " , about high school shootings , following the Columbine High School massacre , despite the fact it had been written and submitted prior to the event . The story was finally published in 2010 . 
 Warren Ellis took over the title in 1999 , after his work on Transmetropolitan which <a href='been_done' title='1'><mark>had</mark></a> moved to the Vertigo imprint , following the closure of Helix Comics . He was meant to become a full @-@ time writer for several years , as Delano , Ennis and Jenkins before him , but left the title early after DC refused to publish the story " Shoot " , about high school shootings , following the Columbine High School massacre , despite the fact it <a href='been_done' title='2'><mark>had</mark></a> been written and submitted prior to the event . The story was finally published in 2010 . 
Warren Ellis took ova the title in 1999 , after his wrk on Transmetropolitan which done moved to the Vertigo imprint , following da closure of Helix Comics . He was ment to become a full @-@ time writer for several years , as Delano , Ennis and Jenkins before him , but left the title early after DC refused to publish tdastory " Shoot " , about high school shootings , following the Columbine High skoo massacre , despite thdaact it done been written and submitted prior to thedaent . The dary was finally published in 2010 .