MARYSVILLE — Police have booked a Marysville-area man for investigation of unlawful gun possession in connection with a shooting outside an apartment last month.

The victim, 39, was shot multiple times during a botched robbery, according to court documents. His injuries are considered life-threatening.

Detectives believe the victim was in on a plot to rob two drug dealers June 1 outside the Wishing Well apartments along 88th Street NE.

The shooter told police he fired in self-defense, Marysville police Cmdr. Mark Thomas said.

The 36-year-old was arrested Wednesday at a south Everett motel after members of the Marysville Police NITE team received a tip about his whereabouts.

He is the last suspect to be arrested in connection with the shooting.

Court documents say six people came to Snohomish County from Kent to rob their drug dealer. They arranged a heroin deal as a guise to steal money and drugs. Police were told the robbery was planned after one man said his car had been impounded, he was out of money and he needed a fix.

The dealers met two of the would-be robbers inside a Chevrolet Tahoe. They provided one of the women heroin. Two men approached the Tahoe. Witnesses said they were armed with a gun and a knife. One pointed a gun at the alleged shooter and tried to pull him from a vehicle. The second dealer fled.

He later told police he heard gunfire.

Police found the victim lying in a pool of blood with gunshot wounds to his neck and back. He remains at Harborview Medical Center in Seattle.

The alleged shooter is a convicted felon and banned from possessing guns. He also was booked on suspicion of drug dealing.

The case remains under investigation.

Diana Hefley: 425-339-3463; hefley@heraldnet.com.