The Uzbek man who carried out an ISIS-inspired attack by mowing down tourists along a Big Apple bike path has shown no remorse — and was practically boastful about it, a senior official told NBC News.

Sayfullo Habibullaevic Saipov, 29, remained in critical but stable condition at Bellevue Hospital on Wednesday after undergoing surgery.

A police officer shot him in the stomach after he jumped out of a rental truck holding realistic-looking pistols that turned out to be a paintball gun and a pellet gun.

He has refused to answer an initial round of questions, according to the network.