Police are continuing their search for the second of two men they believe to be responsible for the robbery that led to the death of a Chicago man.

Authorities say Bill Burtner, commander of Midlothian VFW Post 2580, was attacked and robbed Monday at A.J. Smith Federal Bank in Midlothian. At the time, he was depositing money meant to provide flights to Washington for World War II veterans. The robbers got away with about $2,000.

Jerry Brown, 28, of Calumet City, is charged with robbery and was being held on $800,000 bond, according to Cook County state's attorney's office spokesman Andy Conklin.

The second suspect fled on foot and remains at large.

Burtner was found unresponsive at his southwest side home Wednesday night. The Cook County Medical Examiner's office says the 65-year-old Vietnam veteran was taken to Advocate Christ Medical Center in Oak Lawn, where he was pronounced dead.

An autopsy Thursday showed Burtner died of heart complications caused when his ribs were fractured in the assault.