A Roxbury man accused of fatally shooting 15-year-old Soheil Turner as he waited for a bus to take him to school, was today ordered held without bail at his district court arraignment, Suffolk County District Attorney Daniel F. Conley announced.

XZENIYEJU CHUKWUEZI (D.O.B. 4/4/91) was arraigned in Roxbury District Court, and charged with murder and unlawful possession of a firearm for the eighth grader’s death on the morning of May 7.

Assistant District Attorney John Pappas told the court that shortly after 7 that morning, Turner left his Eustis Street house for school. “With his backpack strapped across his shoulders, he did not know he had left his house for the last time as he walked up Adams Street,” Pappas said.

As he arrived at his usual bus stop at Adams and Dudley Streets where the Nunez Market is located, Pappas said, “he did not know he would never set foot on that school bus on the morning of May 7, 2009.”

At about the same time, another man – who was later identified as Chukwuezi – left his Forest Street apartment. He walked down Adams Street to Dudley Street to the area where Turner normally waited for his bus.

“This person also had a backpack across his shoulders and an umbrella in his hand,” Pappas said. “Unlike 15-year-old Soheil Turner, however, this person had something else in his right hand packet – a loaded .380 semi-automatic handgun.”

“This person is the defendant who stands before you today, Xzeniyeju Chukwuezi,” Pappas said.

As Turner reached the bus stop, he went into the market and purchased some items. He then stood outside the market waiting for his school bus, Pappas said. On the opposite corner at an MBTA bus stop, the defendant stood, watching.

“Several buses arrived at the stop, and he did not get on any of them,” Pappas told the court.

After two females who had been waiting at the same bus stop as the defendant got onto a bus, the defendant “made his move,” Pappas said.

“Indifferent to the pedestrian and vehicular traffic on Dudley Street that morning, he approached Soheil Turner and engaged him in conversation,” Pappas said, noting that there was no apparent apprehension on Turner’s behalf. During this conversation, the defendant allegedly reached into his right hand pants pocket.

“As Soheil Turner stood outside the market, armed with nothing but his backpack and the honeybun he was eating at the time, the defendant, without warning, without hesitation, drew a .380 semi-automatic and fired not once, but twice at the defenseless and unsuspecting Soheil Turner,” Pappas told the court.

Immediately following the shooting, the defendant allegedly fled the area, turning up Adams Street and heading towards Forest Street.

“Back in front of the Nunez Market, Soheil Turner lay on the ground, mortally wounded, his life literally ebbing out of him as a result of a fatal gunshot wound to the head,” Pappas said.

In the aftermath of the shooting, security surveillance footage was located, reviewed, and retrieved from multiple locations surrounding the Dudley Street market.

“It would be a gross understatement to describe that footage as shocking,” Pappas said. “What is captured on that video is a calculated and vicious assassination in every sense of the words and images they conjure up,” Pappas told the court.

Pappas noted that Boston Police detectives and Suffolk County prosecutors were able to identify Chukwuezi based on a review of footage capturing the incident and through witness accounts. Police officers obtained a warrant for Chukwuezi’s arrest on May 19, and took him into custody that morning at the McKinley Prepatory High School.

Chukwuezi was represented by attorney John P. Moss, Jr. He is expected to return to court on June 22.