Tyree had befriended some of the young women in his apartment complex and would buy them things, witnesses told police.
In an unusual twist in the investigation, attack survivor Hale positively identified Martin as the shooter through Facebook, police reported.
Hale told The Oklahoman he looked at Tyree's Facebook page at the hospital, saw that Perkins was one of Tyree's only online friends and then looked at her Facebook page.
There, Hale saw photos of her boyfriend, Martin.
“It was pure dumb luck that he had his picture on her Facebook page,” Hale said.
The survivor said he knew about the woman because Tyree once showed him her photo on a cellphone.
“He had mentioned to me a couple of weeks prior that they had been together. They both agreed it was a mistake … but everything's cool. They were still friends and left it at that. That's what he told me,” Hale said.
Hale said the shooter did not say anything to Tyree before pulling the trigger.
“James told the guy twice, ‘I know you,'” Hale also said.
Hale, 48, a disabled Iraq War veteran, believes the shooter had one or two accomplices. Hale recalled one guy said to the shooter, “What's taking so long? Hurry up and pop a cap in his ass.”
Detectives still are investigating the shooting in an effort to identify the other suspects.
Perkins, 21, could not be located for comment. Calls to a phone number listed for her went unanswered.
In July on her Facebook page, she wrote Martin was facing serious charges for something he didn't do. She also wrote she knew he was going to get out and that they would be back together soon.