Aaron Marr.

MUS-2026-0125

Index entry. Case details compiled from public reporting; our researchers have not verified this file yet.

On September 22, 2007, 37-year-old Aaron Marr was stabbed to death inside his Ames, Iowa home. He told first responders he knew who had attacked him but said he would not tell, and died en route to Mary Greeley Medical Center. Investigators found marijuana and cocaine residue at the scene; Marr and his roommate had arranged a crack-cocaine purchase with a man called ‘P.J.’ expected around 9 p.m. No arrests have been made; a $2,000 reward went unclaimed.

1. September 22, 2007

   At 9:53 p.m., Ames police responded to 210 S. Second St. and found Aaron Marr, 37, with stab wounds to his neck and back

2. September 22, 2007

   Marr told first responders he knew who had attacked him but said he would not tell; he died en route to Mary Greeley Medical Center

3. 2007

   Investigators found marijuana and cocaine residue at the scene; Marr and his roommate had arranged a crack-cocaine purchase with a man called 'P.J.' expected around 9 p.m.

4. June 2011

   The Ames Tribune revisited the case in a roundup of unsolved mid-Iowa murders

5. January 2024

   The case remained listed as unsolved on Uncovered; a $2,000 reward for information had gone unclaimed

This case is with the Ames Police Department. If you know something, say something to them. For public-record leads for our researchers, use the tip line on any open file.

• Iowa Cold Cases: Ames case archive
• Ames Tribune: 2011 mid-Iowa unsolved murders (PDF)
• Uncovered: Aaron Marr case file