TORONTO – One year after a TTC collector was shot in an armed robbery, no arrests have been made in the case.

William Anderson, then 52, was shot in the neck and shoulder at Dupont Station on Feb. 26, 2012 after refusing to hand over money to a robber.

The suspect, who police believe had targeted the same station twice before, demanded cash from Anderson. He refused. The suspect walked away, then turned and fired three rounds into the collector booth.

Toronto police said on Tuesday that they are no further ahead in the investigation, but that it remains a top priority.

“It’s one of the most important cases we’ve had in a years. We really want to put it to rest,” said Staff Insp. Mike Earl.

“If they’re going to shoot a collector behind glass, who else are they’re going to shoot if something triggers their mind?”

Anderson is recovering but has not returned to work.

“He’s still got a mark on his throat,” TTC CEO Andy Byford said. “Psychologically, he’s still coming to terms with what happened to him.”

The suspect is white, with a stout build, and was wearing a black balaclava over his or her face at the time of the shooting.

“We need to bring this person to justice. This person has got to be taken off the streets,” Byford said of the suspect.

“I never want to see that happen to a member of my staff again. There’s still someone out there at large who has committed this heinous assault.”

Police believe the same suspect is responsible for two other armed heists at the same subway station.

The TTC is offering a $25,000 reward for information that leads to an arrest and conviction. It’s the first time the transit commission has offered a cash reward.

Anderson was inside the collector booth at the time of the shooting. Since then, Ross said, the TTC has taken steps to increase the safety of the booths.

Bullet-resistant glass is in the process of being installed, and debit and credit machines are now in place at all stations to reduce the amount of cash on hand, Ross said.

The position of the CCTV monitors has also changed. The screen that shows were cameras are pointing is directly behind the collector.

On average, two TTC employees are assaulted every day, the commission said.