Photo by voteprime.

Christopher Martin— a 27-year-old who was accused of murdering his mother and attacking his brother in 2010—was sentenced to 29 years in prison today, according to a release from the U.S. Attorney’s office.

In 2010, police responded to a call from his younger brother, Demetrius Martin, who had escaped from a second-story window of the Martin’s home in the 4200 block of Fourth Street SE, after his brother had stabbed their mother and beaten him. According to reports, when police arrived to the scene “they found the body of Patricia Ann Martin, 58, in an advanced stage of decomposition spurred on by the heat in the apartment and the fact that the defendant had covered her with multiple blankets.” Christopher Martin was arrested later that day when police discovered that he had a “long, deep gash to the palm of his hand, consistent with his hand having slid down the blade of a knife.”

The elder Martin was found guilty of second-degree murder while armed, assault with a deadly weapon, and simple assault this past June, after his lawyers unsuccessfully proceeded with an insanity defense. Martin suffers from schizo-affective disorder, but the jury found him “guilty of all charges and rejected the defense of insanity,” after the prosecution found “no evidence that his criminal conduct resulted from his mental illness.”