It's on video when the officer pulls it out of his bag.

Officers Christy Wasser and Fox had done a cursory search of Mangione’s backpack at the McDonald’s and found a loaded magazine.

Wasser turned off her body-worn camera for an 11-minute period.

When she turned the body camera on again, she brought the bags into the precinct. Upon opening the backpack, she quickly found the firearm.

you and I both know that was his gun that he made himself

No. There is a reasonable opportunity for the gun to be planted.