Remains believed to be those of missing pregnant teen Kylee Monteiro were found at her boyfriend's residence, leading to a murder charge against Gregory Groom.

Gregory Groom, of Rehoboth, confessed to police that he stabbed Kylee Monteiro multiple times with a kitchen knife, according to prosecutors.

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.

The suspect in the murder of 18-year-old Kylee Monteiro faced a judge Wednesday morning where prosecutors recounted Gregory Groom's confession in the incident to Rehoboth police.

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

REHOBOTH, Mass. (WPRI) — The family of a missing 18-year-old woman from Rehoboth is holding a vigil this weekend. Kylee Monteiro’s sister told 12 News they will be gathering at 7 p.m. Saturday near the Gazebo at Redway Plain. The address is 401 Winthrop St., which is off Route 44.

REHOBOTH, Mass. — Friday marks the eighth day that 18-year-old Kylee Monteiro has been missing. Monteiro, who is 11 weeks pregnant, was last seen on Thursday, August 7, at her boyfriend’s home in Rehoboth, Massachusetts, according to family, friends, and law enforcement.

I tried talking with her after that, and she just stopped responding,” the friend, who was not identified, told WCVB 5.