Three members of a Norristown gang were convicted of murder for executing a rival over an Instagram beef
Jabriil Morgan-Cook, 20, Naseem Worrell, 19, and Kaleem Roland, 17, were convicted of first-degree murder in the May 2025 death of Tahaj "Pooh" Harrison.

Three members of a Norristown street gang were convicted of first-degree murder Wednesday for killing a rival in an execution fueled by revenge.
Jabriil Morgan-Cook, 20, Naseem Worrell, 19, and Kaleem Roland, 17, were also convicted of conspiracy to commit murder, third-degree murder, and gun charges in the May 2025 death of Tahaj “Pooh” Harrison.
Harrison, according to evidence presented during the trial, made an Instagram post that insulted the trio’s friend, Seth “Pop” Marshall, who was shot dead in West Philadelphia two days before Harrison was killed.
Harrison, 20, said Marshall “died like a [expletive],” and repeated that insult in a private message to Worrell.
Seeking retribution, the group sought to ambush Harrison, filming an Instagram Live video in which they promised to “go hunting,” and Morgan-Cook said he was ready to kill for his friend.
The group did just that, evidence showed, shooting Harrison an hour later as he stood outside of his home on Corson Street.
Assistant District Attorney Tanner Beck, who prosecuted the case, said he was grateful for the jurors’ attentiveness during the two-week trial, and for the thorough investigation by detectives who pieced together the three defendants’ activities before, during, and after Harrison’s murder.
“They hunted down Tahaj Harrison like prey in response to something that he wrote on Instagram about their dead friend,” Beck said. “And they made sure that he paid the price for that.”
Morgan-Cook faces a mandatory sentence of life in prison. Worrell and Roland, who were 17 and 15, respectively, when the shooting took place, will be sentenced in the coming weeks by Montgomery County Judge Steven T. O’Neill.
Attorneys for the three did not comment after the verdict. During the trial, the attorneys attempted to discredit the prosecution’s case, saying the Instagram video was little more than boasting.
And they told jurors that surveillance footage, including a video that captured the fatal shooting, was too blurry and grainy to properly identify the shooters.
Jurors were not swayed, and delivered their verdict after about three hours of deliberation.
Morgan-Cook and Worrell showed little reaction to that verdict. But Roland, the youngest, sobbed softly as he was led out of the courtroom in handcuffs.
The trial offered an inside look into the gang culture that prosecutors say has been a scourge in Norristown since the 1990s. Morgan-Cook, Worrell, and Roland are all self-professed members of the 300s/All Black Bandits, while Harrison claimed allegiance to the 6/Grimy Boys.
Both factions deal in gun violence, and have been behind a rash of fatal shootings in the borough.
“I hope that this [verdict] serves as a deterrent to others that might be considering doing this in the future,” Beck, the prosecutor, said. “That if you’re going to do this, we’re on it, and we’re going to hold you accountable for it.”

























