Detectives have arrested the Bronx man they claim killed and chopped up his roommate a day after his victim’s 46th birthday — leaving several of the body parts burning in a shopping cart under a Yonkers Metro-North train station,

Police arrested a man on Friday for murder and related charges in connection to the remains of a Bronx man that were found between a borough apartment and in a burning shopping cart in Yonkers on the same day last month.

Investigators have identified two people of persons of interest tied to the grisly discovery of a handless, toothless burnt body that was in a shopping cart under a Yonkers bridge, according to law enforcement sources.

A Bronx ex-con was charged with murder Friday in the grisly August slaying of another man whose chopped-up body parts were found stashed in a crockpot inside a Bronx apartment – as well as in a burning shopping cart in Yonkers,