Three men attempt to rob a manager at a cash checking business and ended up biting more than they could chew. They were arrested and charged with more than 1 murder.

an sentenced to die in McKinney quadruple murder loses U.S. Supreme Court appeal (dallasnews.com)

McKinney homicide - Wikipedia

Family Works to Celebrate the Lives of Those Killed in 2004 Robbery – NBC 5 Dallas-Fort Worth (nbcdfw.com)

Suspect describes scene of McKinney murders in '04 | wfaa.com