An engaged couple was murdered in their luxury South Boston penthouse on Friday night — and the brutal killing may not have been random.

According to Boston 25 News,  Dr. Lina Balanos and Dr. Richard Field, both anesthesiologists, were found dead with their throats slashed in their condo on Friday night. The couple was engaged to be married.

Bampumim Teixeira, 30, of Chelsea, has been taken into custody on suspicion of killing the doctors. Teixeira reportedly shot at police inside the Macallen Building in South Boston after they responded to a call about a man with a gun. Police subdued him and took him to a hospital before charging him on Saturday.

Shortly after police arrived to the building Friday night, they found Dr. Balanos and Dr. Field with their throats slashed in their 11th floor apartment. According to NBC Boston, Dr. Field texted a friend for help before he died, but it was too late. The couple was dead by the time police entered the apartment.

Teixeira reportedly has a criminal history for theft and other non-violent crimes. And according to Boston 25 News, Balanos, 38 and Field, 49, knew the suspect. It is unclear how they were acquainted.

It is also not yet known how Teixiera got into the building, which was built in 2007 in an up-and-coming waterfront area just south of downtown.

“The building is really secure, non-residents shouldn’t be able to get up there,” building resident Richard Pope told NBC Boston.

“Everybody’s devastated. A lot of people knew the couple that was murdered,” Marsha MacLean, who works in the Macallen Building, told NBC Boston.

Field worked with North Shore Pain Management and Brigham and Women’s Hospital. Balonos worked at Massachusetts Eye and Ear Infirmary.

“[She] [she] was an outstanding pediatric anesthesiologist and a wonderful colleague, in the prime of both her career and life,” the hospital’s CEO John Fernandez told the news station.