HOUSTON -

Family members of a cab driver who was murdered last week begged for the public's help to track down the two people responsible for killing their loved one.

In shock, the family members of 52-year-old Donalvon Rhyne broke down Monday afternoon as they begged for the public's help to track down the two people responsible for killing their loved one. Rhyne was killed while he was sitting in his cab in front of the Camden apartments on Brompton near Holcombe in southwest Houston.

"We lost a really good man. I'm sorry. He loved his job, he was good at it, he loved his family and was good at being a dad," said his wife, Pamela Rhyne.

Detectives say the murder was triggered by robbery. Police say two suspects started robbing Rhyne and then one of the attackers pulled out a gun and shot the victim, known to many as "Von."

"Von was just sitting there minding his own business and these predators came up off the street and found him as a victim of opportunity. If they'll rob him, they'll rob anybody," said HPD Sgt. Warren Meeler.

Rhyne was a family man, a father and husband. He had worked for United Cab for more than 10 years and before that he was in the Air Force.

"It doesn't seem real. But we were a family that loved each other very much and have lost somebody who loved us too," said Pamela Rhyne.

And there are questions about the timing of everything. The shooting happened Thursday at 10:45 p.m. but police weren't called until 7:15 the next morning. United Cab wouldn't comment on whether cab dispatchers knew of Rhyne's location, but police say all of this is still under investigation.

Police say they do have some surveillance video of the possible suspects, but those images aren't being released just yet.

If you have any information about this case, you're urged to call Crime Stoppers at 713-222-tips. The reward is up to $10,000 for any information that leads to an arrest.