Funeral services for Jon Hickey are being held at 1:00 p.m. at Haight Funeral Home and Chapel in Eldersburg.
Hickey was killed in his home last Thursday, 35-year-old Daniel Greene was arrested in Harford County and charged with first-degree murder.
"It was domestic-related. for lack of better words, it was part of a triangle. Unfortunately, Mr. Hickey, in this case, was new to the party and unfortunately, he lost his life as a result," said Baltimore City Police Detective Donny Moses.
According to Greene's Facebook page, he worked as Firefighter in Prince George's County and Hickey was dating his ex-girlfriend.
Hickey was a volunteer firefighter for several companies in Baltimore County and had just been accepted into the Baltimore City Fire Department.