Ruan Wen Hui, 68, was pounded by an unknown suspect in what

Ruan Wen Hui, 68, was pounded by an unknown suspect in what cops say may have been an attempted robbery on E. 6th St. near Avenue D.

The attacker approached the victim about 8:45 p.m. and started yelling at him. The suspect then threw Hui against a wall, and punched and kicked him in the head when he fell to the ground, cops said.

Hui, who lived in the area, was taken to Bellevue Hospital in critical condition. He died Saturday, police said.

The killer fled the attack on foot. Police described him only as a black man and released a blurry surveillance camera image.

Cops asked anyone with information to call the NYPD’s CrimeStoppers tipline at (800) 577-TIPS.

Here is a video of the attack! Very upsetting!