Charles Polzin, 50, was killed on the evening of November 8, 2016, in Denver after a planned marijuana sale turned into an armed robbery. Polzin and his son had driven from Loveland to meet buyers; at the arranged location one of the men, identified as Joshua Binns, produced a .40-caliber handgun and opened fire. Charles Polzin died at the scene and his son was seriously wounded. The suspects fled.

Investigators identified four people in connection with the setup and arrests followed. Joshua Binns was charged with multiple counts including first-degree murder, felony murder, first-degree assault, aggravated robbery, and weapons offenses. Three others—Seth Michael Binns, Ryan Arellano, and Mackenzie Fay—were charged with felony murder and aggravated robbery. Court filings show the three later pleaded guilty to aggravated robbery; Joshua Binns pleaded guilty to second-degree murder in March 2018 under an agreement that exposed him to a possible sentence of up to 48 years.

Does anyone have information about Charles Polzin, the Loveland family, or the November 8 meeting that could help clarify what happened?