The NYPD has arrested a Brooklyn man in connection with the case of a 15-year-old girl suspected of killing her mother and her mother's boyfriend last month.

Jerry Maisonette was arrested early Wednesday morning and charged with second-degree murder and criminal possession of a weapon.

The suspect was allegedly dating Destiny Garcia, who has already been charged in the killings. She allegedly stabbed and shot her mother and her mother's boyfriend inside an apartment at the Sheepshead Bay Houses on Jan. 3.

Garcia says Maisonette had given her the gun used to kill the couple.