More details are emerging in the brutal murder of Oscar-winner Jennifer Hudson’s nephew, Julian King: according to Chicago’s Newsradio780, the FBI said the body found in a white Suburban is that of Julian King.

The Chicago Tribune cites law enforcement sources who say the body was found on the floor in the back seat of the white Chevrolet Suburban police were looking for in their search for 7-year-old Julian King.

Sources said that the boy was shot twice in the head and also suffered head trauma. The boy was wearing basketball shorts and a white T shirt when found. Police believe the boy was shot to death inside the Suburban. Police are testing the clothing of a man in custody for gunshot residue. The clothing is believed to belong to William Balfour, Jennifer Hudson’s bother-in-law.

Balfour was taken into custody at a girlfriend’s home hours after the bodies were found. Sources say the girlfriend contradicted his alibi. Police say they’ve also caught him in at least one other lie. Police were able to track his whereabouts Friday through cell phone records, sources said. The girlfriend lives two miles from where the truck was found.

Hudson family members are on their way to the Cook County medical examiner’s office this afternoon to identify the body. Police Supt. Jody Weis will hold a press conference at 4 p.m. today.

Police arrived at the Suburban with Illinois license plate X584859 before 8 a.m. in the 1300 block of South Kolin Avenue, after receiving a call of a suspicious vehicle.

LaSahawn Bouie, 36, said officers first opened the back door. “They knew there was a body in there,” he said, adding that investigators looked inside and then too pictures.

It was found by a 75-year-old who lives on the block, John Louden. He said he has lived on the block for 18 years and worried about people selling drugs in the abandoned building behind it. He saw the SUV while walking his dog. After a double-take, he realized the license plate matched the one police were looking for.

I didn’t look in there. I didn’t touch it. I knew it was a strange vehicle,” Louden said. He said police showed up in about five minutes after his wife called them. They discovered the child inside. The body was removed and the SUV was towed away for evidence processing. “I feel bad about that baby,” Louden said.