The reward for information about a Nov. 19 robbery and murder at Barcelona Wine Bar has increased to $33,000 police said.

“The reward money, raised largely by private donors, is facilitated through Crime Stoppers Atlanta,” the Police Department said. “Anyone with information is encouraged to call 404-577-TIPS (8477). Callers can remain anonymous and are not required to testify in a trial, should the tip lead to an arrest and indictment. The reward for [Chelsea] Beller’s murder began with the standard Crime Stoppers amount of $2,000.”

During the Nov. 19 incident, the suspects shot Beller, the restaurant manager, who was complying with the robbers’ demands when she was killed.

Police have uncovered several clues in the case.

Investigators have revealed that one of the suspects had been cut by a razor wire fence leaving blood evidence behind. Police also recovered a sweatshirt believed to have been worn by one of the suspects.

Here is a photo of the sweatshirt:

Here are photos taken from surveillance video of the suspects.

Here is surveillance video footage of the suspects: