The investigation started Feb. 14, 2009, when a maintenance worker discovered Daniel Coverston unresponsive in his Towson apartment in the 7000 block of Lachlan Circle. The initial emergency call came in as a cardiac arrest, but police said he died from a brutal violent act.

"They shot him in the back of the head while he was lying face-down on his bed," Williams said.

Detectives know Daniel Coverston left his apartment door unlocked while recovering from eye surgery so that friends could check on him.

A life taken too soon and the Coverstons want answers.

"Someone came in, shot him and left, and they have no evidence in that way," Linda said. Dan didn't always follow the straight and narrow, but even if you don't, it doesn't mean that you need to die," said Paul.

Some people came forward saying Daniel had stood up to a friend's ex-boyfriend and that he had agreed to testify in someone's case. The Coverstons wonder if either lead to his untimely death.