Three men wearing ski masks forced their way into the home of Oliver Daff, 87, on McPherson Road in Glen Burnie Friday morning. The man and his 73-year-old girlfriend were tied up and injured in the incident.
The thieves took Daff's television, money and other items, police said.
Two days later, Prince George's County police officer Todd Miceli said he heard about the crime on the news, and felt he should help. Miceli told NBC News Washington that seeing that happen to an elderly person was "heart-wrenching."
"I think it comforted him a little bit to know there are some folks out there that care about him," Miceli said.
Miceli wasn't the only person who thought to help, said Anne Arundel County police spokesman Justin Mulcahy.
"I think it struck a chord with the community, quite frankly," Mulcahy said. "The outreach has been huge, but now we want to convert that into tips. The best way people can help right now is to report anything they may have seen that morning."
Mulcahy called the acts of the thieves cowardly, and said the community could help bring them to justice.
Anyone with information on the incident is asked to contact police at 410-222-6155. Anonymous tips can be left at Metro Crime Stoppers at 1-866-7LOCKUP.