A fourth suspect in the shooting death of a prominent Atlanta pastor’s brother has been arrested, police said.

Atlanta police spokeswoman Kim Jones said Demetrius Morgan, 17, was picked up Wednesday morning by the department’s Fugitive Unit, and was taken to the Fulton County Jail.

The third suspect, Felton D. Lovejoy, 18, was taken into custody Tuesday on charges of murder and armed robbery, Sgt. Greg Lyon said. He was also transported to the Fulton County Jail.

Jerrick Jackson — the younger brother of Bishop Wiley Jackson, pastor of Gospel Tabernacle Cathedral — was killed May 7. He and his fiancée were returning home around 1 a.m. when a group of armed men robbed them and forced them into the house, police said. Jackson, 47, and one of the suspects fought, and Jackson was shot multiple times in the torso, according to authorities.

The suspects, driving a black Mustang, apparently had followed Jackson’s Porsche SUV, police said.

Two other men already have been charged in the case.

Geno Lewis, 19, turned himself in to the Fulton County District Attorney’s Office on Friday. Alejandro “Big Poppa” Pitts, 18, was arrested Thursday by Atlanta police and U.S. Marshals. Both men are in the Fulton County Jail and charged with murder and armed robbery.

After the first two arrests, Wiley Jackson told his congregation during Sunday's church service that he forgives the men accused of killing his brother.

“It’s time that we all got to step up and do something,” he said. “What could make young men have so much anger that they want to do harm to someone?”

—Staff writers Mike Morris and Johnny Edwards contributed to this report.