The Rev. Creflo Dollar on Sunday told members of World Changers Church International that the goal is to raise $234,000 for the family of 39-year-old Greg McDowell.
Police say Floyd Palmer calmly walked into a chapel on the church campus Wednesday, approached McDowell as he led a prayer service and shot him to death. Palmer has been charged with murder. His lawyer didn't returned phone calls from The Associated Press.
The Atlanta Journal-Constitution reports that Dollar said the church aims to erase all debts for McDowell's family, and urged congregation members to "show the world the power of a megachurch."