A suspect was arrested Tuesday in the slaying of a Dorchester man who was shot to death as he took his 3-year-old son to get a haircut at a Mattapan barbershop last summer, authorities said.

William Shakespeare, 29, was arrested by the Boston Police Fugitive Unit, New York City police, and US marshals in Bronx, N.Y., officials said.

Shakespeare, formerly of Dedham, was indicted last September on charges of first-degree murder and several firearms offenses, police and prosecutors said in a statement. He is accused of fatally shooting Marcus Hall, 31, on June 14, 2016.

Police said Hall was shot in a back doorway at about 12:20 p.m. as his young son was getting a haircut at the Hair It Is Barbershop on Blue Hill Avenue. The shop is across from the Boston Police Department’s District B-3 station.


Hall died of multiple gunshot wounds and was pronounced dead at the scene, according to his death certificate.

At the barbershop Tuesday afternoon, the front door was locked and workers buzzed patrons in one by one.

One barber, who declined to give his name, said Hall’s son was inside the shop when his father was mortally wounded outside. The shooting occurred after the boy’s haircut was finished, he said.

“He had no idea what was happening,” said the barber. “I was with him the whole time. I held him the whole time. . . . Him and I were just playing.”

Police said Shakespeare fled Massachusetts after the murder and was hiding in New York City until he was arrested Tuesday at 8:22 a.m.

A date hasn’t been set yet for Shakespeare’s Massachusetts arraignment, and he hasn’t retained a defense attorney, said Jake Wark, spokesman for Suffolk District Attorney Daniel F. Conley.

Wark and Boston police spokesman Lieutenant Detective Michael McCarthy said the motive for the slaying is under investigation. A woman who answered the door Tuesday at Hall’s home declined to comment.


Court records show Hall had spent time in prison for a 2003 armed robbery but hadn’t been in trouble in recent years.

Conley said the investigation into Hall’s murder was “marked by seamless collaboration by police and prosecutors.”

“On the street and in the grand jury, their work set the stage for Mr. Hall’s loved ones to find justice in a Suffolk County courtroom,” he said in a statement. “I’m grateful to them, to the New York Police Department, US Marshals, and every person — sworn and civilian — who helped us reach this point.”

Boston Police Commissioner William B. Evans said in a statement that the out-of-state arrest highlights the department’s determination to solve homicide investigations.

“This arrest illustrates the commitment and extraordinary work of my investigators and officers. It sends a strong message that no matter where you run to, we will find you and we will arrest you,” Evans said. “I pray that the news of this arrest brings some level of peace to the family of the victim, and I wish to thank my officers and all who helped locate and arrest this dangerous criminal.”

Another barber at the shop recalled Hall as a “cool guy” and a regular customer.

He said he didn’t see the shooting because it occurred outside.

“It was a very bad day,” said the second barber, who also declined to give his name. “It just brings back bad memories.


Mike Bello of the Globe staff contributed to this report. Laura Crimaldi can be reached at laura.crimaldi@globe.com. Follow her on Twitter @lauracrimaldi. John R. Ellement can be reached at ellement@globe.com. Follow him on Twitter @JREbosglobe.