Gregory Groom was ordered held without bail in the murder of his pregnant 18-year-old girlfriend Kylee Monteiro in Rehoboth, Massachusetts.

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.

A Rehoboth man charged with murder reportedly drew a map pointing to a five-foot hole that he dug to bury his pregnant 18-year-old ex-girlfriend in after he stabbed her to death with a kitchen

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.

The day before prosecutors say her boyfriend stabbed her three times, 18-year-old Kylee Monteiro sent an ominous warning to her sister: "If I die it was Greg."

Gregory Groom, 22, is accused of killing 18-year-old Kylee Monteiro, who was 12 weeks pregnant and was last seen earlier this month.