A 21-year-old man was charged Monday with murder in the shooting death of a man last month in Gary, according to court records.

Donjulian Lamar Hobson, of Gary, was charged with murder in the slaying of Antonio Adams, 23, and with attempted murder in the shooting of Adams’ girlfriend July 14, Lake County court records show.

Hobson also was charged with unlawful possession of a firearm by a serious violent felon, according to court records.

Adams and his girlfriend were at their Gary apartment July 14 when Hobson, also known as Don-Don, came over and asked Adams “to make a run with him,” a probable cause affidavit states.

The girlfriend said she went along, and Adams gave Hobson his gun “when he asked to see it” as they were driving, according to the affidavit.

When they stopped and got out at their location, the girlfriend held Adams’ hand as “they all started to walk through a path that she described as an unkept alleyway,” court records state. Hobson then “all of a sudden” pulled out the gun and pointed it at Adams’ face, and the men “began to tussle,” according to the affidavit. The girlfriend was “begging them to stop” when Adams “ended up on his knees” and Hobson hit Adams in the head with the gun, according to the affidavit. The girlfriend saw “the muzzle flash from the gun,” and Hobson ran off, according to court records.

The girlfriend said “she tried to pick Antonio up and move him, but when she could not, she ran from the scene” and was spotted by a passer-by at the intersection of Eighth Avenue and Tennessee Street, according to the affidavit.

The girlfriend had a gunshot wound to the back left side of her head and was taken to a Chicago hospital for treatment with “a bullet lodged in her skull,” according to the affidavit.

Police searched the area around Eighth Avenue and Tennessee Street for a possible crime scene, but “one could not be immediately located,” according to court records. Adams’ and the girlfriend’s family members said they had not heard from Adams but said he was usually with his girlfriend, according to the affidavit.

On July 16, police “received a call for a possible dead body” found by a man “while looking for scrap” in the east alley of the 700 block of Georgia Street, according to the affidavit. The body was identified as Adams, and his autopsy revealed he died from two gunshot wounds to the back of his head, according to the affidavit.

The Gary police’s SWAT team executed a search warrant at Hobson’s residence and found him hiding under a bed in a basement bedroom with a gun that was reported stolen in May by the Indianapolis Metropolitan Police Department, according to the affidavit.

Hobson told police he knew Adams and “they did not have any problems about which he was aware” and has “always been like family” with Adams’ girlfriend, according to the affidavit. Hobson said the three drove to the 700 block of Vermont Street on July 14 because Adams “told him he had to pick up the marijuana,” according to the affidavit.

Hobson said Adams went in a house and came out “a short time later” with a gun in his hand and “started to swing it toward Hobson,” according to court records. Hobson said he grabbed Adams’ arm and “pushed him up against the house and got the gun away” from Adams, according to the affidavit. The two struggled, and Hobson said he “struck (Adams) with the gun in the head and it fired,” according to the affidavit. Hobson told police Adams “came back at him, and he shot again and saw (Adams) fall to the ground,” according to the affidavit.

A man came out of the house and “began shooting at him,” and Hobson fled to his car and “returned fire in that direction until the gun that he had ran out of ammunition,” according to court records. As Hobson drove along the 900 block of Virginia Street, “he rolled down the window” and “threw the gun out of the window into the weeds,” according to the affidavit.

Hobson said he did now know that he shot Adams’ girlfriend until his ex-girlfriend called him the following day, the affidavit states.

rejacobs@post-trib.com

Twitter @ruthyjacobs