Murdered Boston doctors sent last text: 'Gunman in house'

One of two doctors killed in a luxury Boston penthouse sent a text to a friend saying, "gunman in the house". 

A prosecutor disclosed the desperate message during the hospital bedside arraignment of Bampumim Teixeira.

The accused was injured in a shootout with police at the apartment where the bodies of anaesthetists Richard Field and Lina Bolanos were found.

The couple, engaged to be married, were reportedly tied up and had their throats slit.

The suspect was formally charged on Monday at Tufts Medical Center in Boston where he is being treated for non-life threatening injuries. 

He is being held without bail on two counts of murder. His lawyer entered not-guilty pleas for him.

Mr Teixeira, 30, was arrested after police exchanged fire with him while responding to reports of an intruder at the high-rise apartment complex in South Boston on Friday night.

Upon arrival, officers found a set of keys on the floor and used them to open the door when no one responded to their shouts, Suffolk Assistant District Attorney John Pappas said during Mr Teixeira's arraignment on Monday. 

Mr Teixeira was struck in the hand, abdomen and leg during the shootout with the two officers. 

The officers apprehended Mr Teixeira inside the penthouse flat before discovering Dr Field, 49, and Dr Bolanos, 36, who were already dead, the Boston Globe reported.