BOSTON, August 1, 2017— A Suffolk County jury today convicted a man of stabbing another man during a 2015 armed robbery, Suffolk County District Attorney Daniel F. Conley said.

KAHLI CONSTANT (D.O.B. 1/26/97) was found guilty today of armed robbery and assault and battery with a dangerous weapon in connection with the attack in Roxbury.  Jurors acquitted Constant of armed assault with intent to murder.  Constant, who had remained in custody while awaiting trial, faces sentencing Sept. 5.

During the course of the two-day trial, Assistant District Attorney Caitlin Fitzgerald of the DA’s Gang Unit introduced evidence and testimony to prove that Constant and a second man, RALPH PETERSON HYACINTHE (D.O.B. 10/15/96), watched the victim withdraw money from an ATM at Roxbury Crossing MBTA station on the evening of Dec. 22, 2015, and then followed him from the station.  Once on Centre Street, Constant and Hyacinthe, each armed with a knife, approached the victim from behind.  One of the men stabbed the victim in the back of the head, and the two then demanded his money and wallet. When the victim resisted, Constant and Hyacinthe stabbed him multiple times before fleeing back to the MBTA station, the evidence proved.

The victim was able to walk to his home, leaving a blood trail from the scene, and was then transported to Boston Medical Center.  Once stabilized, the victim spoke with Boston Police detectives and provide a description of his attackers.

During the course of an investigation, MBTA Transit Police were able to retrieve security camera footage capturing Constant and Hyacinthe watching the victim as he stood at the ATM prior to the attack.  Video captured after the stabbing show the men boarding a train and then exiting the train at Forest Hills Station, where a knife was discarded.

Images of the two assailants were distributed to members of law enforcement, and Hyacinthe was positively identified in the images by a probation officer.  A search warrant executed at his home led Boston Police to discover blood-stained clothing that matched the clothing worn during the assault, prosecutors said.

Constant was identified from an ID card located at Hyacinthe’s home and by a relative who positively identified him in security camera images.

Hyacinthe pleaded guilty earlier this year in connection with the case and is currently serving a 2.5 year sentence in the Suffolk County House of Correction, after which he’ll serve an additional three years of probation.

Michael Coffey is the DA’s assigned victim-witness advocate. Constant is represented by John Osler.  Sentencing before Judge Rosalind Miller will take place Sept. 5 in courtroom 806 of Suffolk Superior Court.

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All defendants are presumed innocent until and unless proven guilty beyond a reasonable doubt.