Gregory Groom, the boyfriend of Kylee Monteiro, a missing 18-year-old pregnant woman, will be charged with murder after police found a body in Rehoboth, Massachusetts, according to investigators.Police arrested Groom Tuesday in connection with Monteiro's disappearance.

Gregory Groom, 22, appeared before a judge in Taunton District Court to answer to charges of murder, aggravated assault and battery on a pregnant person, domestic assault and battery, and intimidation of a witness for acts committed against 18-year-old Kylee Monteiro, according to Bristol District Attorney Thomas Quinn III.

Gregory Groom, 22, was charged with aggravated assault and battery on a pregnant person, domestic assault and battery, and intimidation of a witness “for acts committed against” Kylee Monteiro on Aug. 6, Bristol District Attorney Thomas M. Quinn III’s office said.