Nearly a month after a man was shot and killed while riding BART, it appears the police are no nearer to finding his killer. Will a cash reward help develop a lead to the gunman? That's what one the transit agency is now banking on.

As you likely recall, back on January 9 at 7:49 p.m., a man later identified as 19-year-old Antioch resident Carlos Misael Funez-Romero was shot and killed on a BART train at the West Oakland Station.

According to witnesses, a "disheveled looking man," got on the train at either Rockridge or MacArthur station, then pulled out a gun and shot Funez-Romero multiple times as he sat next to the train door, before fleeing on foot into the West Oakland night.

#EXCLUSIVE: Video inside #BART car after fatal shooting in #Oakland, passengers thought it was terrorist attack pic.twitter.com/EeS3Tssfdz — Matthias Gafni (@mgafni) January 10, 2016

Since then, reports from BART police have been confusing: The shooting wasn't random! Wait, maybe it was! The shooter and the victim never interacted! Oh, wait, they did! In fact, KRON4 reported Friday, investigators still don't know "what the motive was for the shooting and don’t know what kind of a relationship the suspect and Funez-Romero had, if any."

The issue was complicated when it was revealed that many of the cameras that appear to be mounted on BART's cars are actually fake, including those that might have caught the incident on tape. But they do say that these photos depict the shooter:

And now, via press release, BART has announced that the transit agency is now "offering a reward of up to $10,000.00 through Oakland Crime Stoppers."

According to BART, the money is yours "if a tip leads to an arrest of the murder suspect."

“Someone in the public knows who this guy is and we need their help to bring him to justice,” said BART Police Chief Kenton Rainey says.

“This is an active investigation and detectives are following up on all leads.”

Know something about the shooting? (It doesn't even have to be $10,000 worth, as anything will obviously help BART's crack team of investigators solve the case.) If you do, you can submit an anonymous tip at 510-464-7011, contact BART investigators directly at 510-464-7040, or call Oakland Crime Stoppers at 510-777-8572.

Previously: Man Shot And Killed On BART At West Oakland Station

BART Shooting Victim ID'd As Police Release More Suspect Photos

Shooting Aboard BART In West Oakland Was Not Random, Suspect Still At Large

Police Release Photos Of BART Shooting Suspect, Say It Could Have Been Random After All

BART Shooting Victim ID'd As Police Release More Suspect Photos

BART Shooting Victim And Suspect Had Prior Altercation

Fatal Shooting Shames BART Into Installing More Actual Cameras