A Texas man on death row for murdering two people is asking the state to halt his April 13 execution after someone else has allegedly come forward to claim responsibility - his own cousin. James Broadnax's attorneys filed an appeal asking the court to stay his upcoming execution, claiming their client's codefendant in the 2008 case - his cousin, Demarius Cummings - is the one who fired the bullets that killed Stephen Swan and Matthew Butler. The shooting unfolded in Garland outside of a Christian music recording studio, according to police.