Testimony from the two people with Otto that day made it murkier.

Samantha and Jordan Lambert, who was driving the car, originally told Missoula County Sheriff's Detective Jon Gunter that they'd gotten the marijuana from Otto, according to court papers. Wednesday, they testified they didn't remember who lit the bowl or where the marijuana in it came from.

Daly repeatedly pointed out that neither of the Lamberts was charged with possessing or distributing marijuana, even though the bowl was shared among the trio.

"The detective told me if I was honest with him about taking a hit off the pipe, I would not be in trouble," Jordan Lambert testified.

Gunter testified that as a narcotics investigator, he felt it was more important to home in on the source of the drug.

Sheriff's Deputy Bill Burt, who questioned Otto while Gunter was talking with the Lamberts, videotaped that encounter.

On the tape, Otto told Burt that he had a medical marijuana card and that he used cannabis for back and knee pain.

"I've got all kinds of pain from carrying all this equipment," Burt replied. "... My point is, you're doing it for the recreation."