After the Dillinger hit him diligently and killing him
This may very well be a reference to D-12’s Swifty McVay line from his verse on Em’s “When The Music Stops”
He’s taking a note from Em and using the extended metaphor, continuing the previous line about Zimmerman. Zimmerman was a public enemy after killing Trayvon Martin.
Note: Diligently means “with great effort.” The gun killed ‘em with great effort!
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