A heartless gunman shot an 80-year-old Brooklyn bodega owner in the chest Tuesday night — killing him over a mere 50 cents, police sources told The Post.

The gunman, who was still at large Wednesday, had taken a bottle of Corona from the fridge and thrown down $1.50 in payment.

“Hey, that’s $2!” shouted one of the four workers in the bodega — the 797 Deli on Stanley Avenue and Ashford Street in East New York — a law enforcement source told The Post.

“I’m going to come back,” the man threatened as he left with his beer. “And shoot you all.”

Sure enough, a short while later the man returned and opened fire, letting loose 12 bullets.

Only one struck its target, piercing the chest of bodega worker Abdulla Yafaee, 80.

The callous gunman fled, but was caught on video and recognized by surviving workers as someone who had been at the store before.

Read more from the New York Post.