The homeowner arrived at the house in the 500 block of Allegheny Ave. around 1:30 a.m. to find a burglary in progress, Cpl. Robert Carman said. The burglar shot the man and then fled, Carman said.
A suspect was arrested a few hours later near the intersection of Bosley and Chesapeake avenues in Towson, police said.
Authorities said there was no indication that the victim was targeted or that there was a relationship between the victim and the suspect.
The names of the suspect and the victim were not released by police Sunday.
State property records list the home's owners as Anna I. and George M. Stover Sr. and George M. Stover Jr.
On Sunday afternoon, neighbors were surprised to hear of a shooting in what they described as a quiet and family-friendly community, which is near the Baltimore County government buildings.
Heading for a Highland Avenue playground with his family late Sunday morning, Albert DeFelice walked past the stone house surrounded with yellow police tape and wondered what had happened. A single police vehicle remained on the street late Sunday morning.
"That's pretty alarming," DeFelice said when he learned of the burglary and shooting.
Neighbor Brendan Kennedy said he and his wife were awakened by sirens and police activity early Sunday morning. Later, Kennedy said, he found out what had happened.
Kennedy said police had recently visited the neighborhood because of daylight burglaries on nearby West Chesapeake Avenue.
Still, Kennedy said, he wasn't worried.
"We feel pretty safe and secure being so close to the county seat and with Towson University so close," he said.
Brian Berry, a West Towson resident and a mail carrier in the community, said he was comforted by the fact that police had nabbed a suspect.
"I'm glad they caught the person," Berry said as he took a break from playing basketball with his son at the Highland Avenue playground. "That's peace of mind for the residents."