After Jack saw that Mary was dead, he put the gun in Bill's hand.
8 seconds sound clip from the Reefer Madness (1936) movie soundboard.
You can hear this line at 01:00:08 in the Blu-ray version of the movie.
Quote context
[...]
- But you see, Judge, Bill didn't know he hadn't killed Mary.
- He was so doped up, they made him think he had.
- Ralph wanted to tell you, too.
- But this is the truth, Judge. I'm telling you the truth.
- After Jack saw that Mary was dead, he put the gun in Bill's hand.
- It was Jack's fault. And it was my fault, too.
- I got all of them to come up to the apartment.
- I'm just as much to blame. I am. I am.
[...]