Boyfriend of murdered pregnant teen found in Rehoboth confessed; here is what he reportedly said

A Bristol County man accused of murdering his girlfriend was arraigned Wednesday in Taunton District Court and pled not guilty.

Bristol County District Attorney Thomas Quinn, III announced the arrest Tuesday of 22-year-old Gregory Groom of Rehoboth as remains were found on his property consistent with missing pregnant teen Kylee Monteiro.

The defendant has been charged with 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 on Wednesday, August 6, 2025, at 107 County Street in Rehoboth.

According to WCVB, during Wednesday’s court proceedings, prosecutors stated that Groom was the initial person to notify police of Monteiro’s disappearance on August 8th. He claimed she had come to his residence seeking shelter but departed after a dispute.

Prosecutors further noted that Groom subsequently confessed to authorities that he had shoved Monteiro during a confrontation on August 6th, causing her to fall and strike her head. He also acknowledged dislodging her phone from her grasp, which resulted in charges of domestic assault and battery.

When informed by police that they intended to search his property, Groom eventually admitted to repeatedly stabbing Monteiro with a kitchen knife amid the dispute. Prosecutors added that he described excavating a grave in the nearby woods to conceal her remains.

Monteiro’s body was discovered approximately 20 yards from the shed where the incident took place, buried about 5 feet deep, according to the prosecution’s account in court.

Groom is currently held without bail with his next court appearance scheduled for September 10th, a probable cause hearing.

Monteiro, an 18-year-old woman from Rehoboth, had been missing since Thursday, August 7th.

A candlelight vigil will take place on Saturday August 23rd at 7 Pond Street/ 401 Winthrop Street in Rehoboth. There will be candles and both family and friends will be able to speak about Kylee.

A GoFundMe fundraiser has been created by Kylee’s family for funeral arrangements.

On Thursday from 10:30 a.m. – 12:30 p.m., Attleboro High School, where Monteiro just graduated, will provide grief counseling by School Counselors to support students, families, and staff.