Brandon Davis was convicted of first-degree murder for killing a 19-year-old man on Christmas.
It would have required the Suffolk OTB to get Brookhaven town approval before building a mini-casino.
"Hyperbaric oxygen therapy has been shown to dramatically improve the symptoms of patients suffering from combined TBI and PTSD."
Police released a sketch of the suspect Wednesday.
The slot machine facility could open as early as November and another in Medford may debut next year.