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

The allegations were detailed in police reports and by a prosecutor Wednesday in Taunton District Court, where Gregory R. Groom pleaded not guilty to charges of murder and assault and battery on a pregnant victim in connection with the death of Kylee Monteiro.

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

Massachusetts police converged in an area where 18-year-old Kylee Monteiro was last seen, almost two weeks after she was reported missing.

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.

"Before joining the club, I was shy, felt I did not have a place to go to where I would feel at home, also a lot of kids at school were bullying me before, but when I told them I had joined the club,