HOUSTON -

It was one year ago when someone broke into Percy Harmon's northeast Houston home, tied him up and bludgeoned him to death.

The violent crime happened sometime over the Labor Day weekend in 2011.

Concerned neighbors found Harmon's body inside his home in the 45000 block of Leffingwell.

On Saturday friends and family, determined to help track down Percy's killer, handed out fliers in the area he was killed.

"Even though uncle Percy isn't here any more, we're still here. And we're going to work to make sure this case doesn't become a cold case," said Percy's niece, Janice Simmons.

Investigators said cases like this can sometimes be difficult to solve.

"From the beginning we had a couple of leads that led to nowhere. We had a couple of people call in but they were very light leads and didn't go anywhere either," said Paul Vela with the Houston Police Department's Homicide Division.

Time can only make the search for his killer more difficult, but investigators said the family's efforts could prove to be very helpful in putting whoever is responsible behind bars.

"In the past it has helped with other cases. And I believe that with time people come to their senses and say they're tired of crime, tired of keeping this in, they want to speak to someone," said Vela.

"We're hoping to come up with some information today to lead us to the person responsible for this," said Percy's brother Mervin.

"We believe there's somebody in the vicinity here, if they're not directly responsible for this, somebody knows something about who some of these people might be," said Mervin.

"He was a World War two veteran, he fought for this country. He worked for the City of Houston until he retired, and up until his death, his every day attire was his uniform from Houston," said Simmons.

Simmons said she hopes the killer talked about his crime, and that someone will step up and do the right thing.

"I know when people do things I hear that they brag about it. I know they've told somebody, they've said something to somebody. There's a reward out there. We want somebody to claim that reward," said Simmons.

Crime Stoppers is offering a reward of up to $6,000 for information that leads to an arrest and charges filed. If you know anything, give them a call at 713-222-TIPS (8477).