Cops were still hunting Thursday for the jealous boyfriend accused of hacking to death a young mother and her two baby daughters, including his own, in a Staten Island hotel.

Police have been searching for Michael “Skyes” Sykes, 23, since Wednesday after a maid discovered the butchered bodies of Rebecca Cutler, 26, and her baby girls inside a Willowbrook Ramada Inn.

Cutler’s family members urged Sykes to do the right thing and turn himself in.