A 25-year-old man, who Baltimore police say was a Johns Hopkins Hospital security officer and a former Air Force reservist, was fatally shot Monday night in a robbery near the county line.

The victim, identified as Daniel C. Dixon, was returning to a hotel at the intersection of Frankford Avenue and Moravia Park Drive about midnight after purchasing food at a nearby gas station when at least three suspects approached and demanded money, according to Anthony Guglielmi, the city Police Department's chief spokesman. There was a struggle, and Dixon was shot multiple times in the chest. The suspects took his wallet and fled in a green vehicle, police said.

Dixon, of the 2700 block of Auchentoroly Terrace, was taken to Johns Hopkins Bayview Medical Center and pronounced dead about 30 minutes later, police said. When police arrived, he was lying in the hotel parking lot, being held by a brother.

Air Force officials confirmed that Dixon was a reservist from 2003 until 2007, serving at the rank of senior airman. Records show he was deployed in 2004, though details of his assignment were not available.

Dixon is at least the fourth former or recent member of the armed services to be killed in Baltimore since late December. A 22-year-old soldier was gunned down in Southwest Baltimore in late December while on Christmas break from a deployment in Afghanistan, and a Marine, a 20-year-old stationed in Southeast Washington, was killed at a Northeast Baltimore party in January.