punching the tickets on the Mickster's muscle

[Mike Hussey]

Deuce Perkins got killed by two men:

Narrator: Meet Deuce Perkins, Mickey Cohen's narcotics lieutenant. Could he be behind the hits? Is he consolidating organized-crime power? I suppose not. One thing's for sure: Two-man triggers are punching the tickets on the Mickster's muscle. Meanwhile, rumor has it the L.A.P.D...has set up a not-so-welcome wagon to dishearten out-of-town criminal element... ...from filling the void left by Mickey's absence.

What does "punching the tickets on the Mickster's muscle" mean?
Does it mean killing Mickey's goons?

Source: Source: L.A. Confidential (a 1997 American neo-noir crime film directed, produced and co-written by Curtis Hanson.)

 

[GoesStation]

Yes.

 

[Tdol]

to dishearten out-of-town criminal element

Making this plural or using the definite article after dishearten would work better for me.