BOSTON -- Two brothers were arraigned this week in Suffolk Superior Court and charged with murder for their roles in the beating and fatal stabbing of their mother's boyfriend in April.

Eugene Teixeira, 21, and Aasim Smith, 16, both of Chelsea, were charged with second-degree murder for the stabbing death of 25-year-old Shadeed "Cleo" Wiggins in the home the victim shared with their mother on Chester Avenue.

Smith was arraigned in Suffolk Superior Court on Tuesday, and Teixeira was arraigned Thursday. A Superior Court clerk magistrate ordered that both be held without bail pending a trial date scheduled for next year.

Evidence suggests that sometime in the early afternoon on April 29, the mother of the two defendants asked them to leave the Chester Avenue apartment where they resided with their mother and Wiggins.

At about 3 p.m. that day, evidence indicates, Teixeira and Smith forced their way into the apartment by allegedly kicking down the back door. Upon entering the apartment, the two defendants became engaged in a verbal altercation with the victim, which became fatal when Teixeira allegedly grabbed a knife and stabbed Wiggins seven times in the areas of the chest, hand, neck and face. Smith, who was carrying a baseball bat, was at the same time allegedly attempting to strike Wiggins.

Shortly after the stabbing, the two defendants fled the apartment. Chelsea police officers who responded to the scene discovered Wiggins bleeding profusely at the bottom of a stairwell leading up to the second floor apartment.

Smith, who was attempting to flee the scene on foot, was apprehended by officers following a brief chase, police said. Teixeira was taken into custody later that evening after being arrested at his grandmother's home in Cambridge.

Prior to his arrest, Teixeira allegedly spoke to his other grandmother on the phone. According to witness testimony, when she told him that the victim had died Teixeira allegedly said he, "didn’t stab him like that."

Following their arrest, Chelsea police officers observed that neither Teixeira nor Smith had visible wounds, and they were not bleeding. A subsequent examination of both defendants revealed blood on their hands.

Teixeira and Smith are expected to return to court on Sept. 18.