
Matthew Perry‘s death has, publicly, been considered an open and shut case — but, as far as the authorities go, they’re still digging into how he got one particular drug … TMZ has learned.

Our sources say both local police and the DEA have been looking into this matter for months, but it’s unclear where exactly investigators are in the probe.
We do know they’ve already interviewed some key people in Hollywood.

Of course, that suggests Matt got ketamine from another source … possibly outside of a medical setting. That’s exactly what law enforcement has been trying to ascertain.
In May 2022, Stephen Walter was sentenced to more than 17 years in prison … after taking a plea deal for supplying Mac with fentanyl-laced pills.

