Verified answer

Technically no unless Fred put himself in that situation on purpose and manipulated Jim into doing it.

The same is true of a person committing suicide by train or car. If they put themselves in the position of mortal danger on purpose, even though the vehicle is being operated by someone else, the driver is not a murderer unless they specifically tried to murder the person.

Well, why else would Fred say "Do it?"

To test Jim?

Or because Fred was waiting for the perfect chance to die?