A 21-year-old college student from the District who aspired to become a police officer was stabbed to death Monday night in Baltimore.

Marcus Edwards, a student at Morgan State University, was walking to his off-campus apartment about a mile from the school when he was attacked, according to police and his mother.

“We don’t know” what the motive was, said Baltimore police spokesman T.J. Smith.

He said robbery could not be ruled out. However, Edwards’s mother, Nicole Brooks, said she had been told that he still had his cellphone and wallet when found.

The attack occurred in a residential area at Loch Raven Boulevard and Woodbourne Avenue well after dark and apparently was swift. Smith said there had been “no major confrontation.”

He “didn’t have any rivalries” and got along with everybody, his mother said.

His ambition was to become a D.C. police detective, she said. “He really wanted to help at-risk youth,” she said.

As a means of reaching his goals, she said, Edwards was working toward a degree in social work at Morgan State, in northeast Baltimore.

He was born in the District and grew up here, living in Northeast Washington and graduating from Cesar Chavez Public Charter School, she said.

He began his college career at Kentucky State University before returning to the D.C. region.

As a teenager, his mother said, Edwards had been enrolled during the summers in a youth program operated by D.C. police.

In addition, Brooks said, her son had been active in the youth ministry at Judah Temple AME Zion Church in Bowie.

Brooks called Edwards a “loving, caring” son who was well loved in return and “never gave us any problems.”