Charleston police have arrested a second suspect in the fatal shooting Tuesday of a 22-year-old man in Martin Park.

Sequoia McKinnon, 17, of North Charleston is being held without bail in the Charleston County jail on charges of murder and possession of a firearm during the commission of a violent crime, jail records show.

McKinnon surrendered to investigators Wednesday night at police headquarters on Lockwood Drive, police spokesman Charles Francis said.

McKinnon, who has no prior criminal record, did not address the charges during a brief bail hearing Thursday afternoon.

McKinnon is accused of killing Rhakym Capers, who was shot several times near a baseball dugout in the park, police said. Also charged in the slaying is 17-year-old Kareem McPherson of Grove Street, who faces a murder charge as well.

McPherson told police he drove McKinnon to Aiken and Line streets and that his friend set off on foot from there. Gunshots sounded and McKinnon came back running, with gloves on his hands, and jumped in the car, ordering McPherson to take off, according to arrest affidavits.

As they sped away, McPherson reportedly told police, his friend made a phone call and said, “I got him Unc. I got him.”

McPherson also told police he saw McKinnon holding a silver-colored firearm before he bolted from the car, affidavits stated.

Capers died a short time after the shooting. Investigators are trying to determine if there is any connection between Capers’ slaying and the fatal shooting of his 25-year-old brother, Antonio McCullough, in North Charleston in March.

Anyone with information on the killings can call Crime Stoppers at 554-1111.

Dave Munday contributed to this article.