My question is why would the gun be 3d printed as it looks like he copied a glock...the serial number would have been on the metal barrel too, was a threaded barrel according to police...and I am very skeptical of a 3d printed silencer...wouldn't one think that that 1st shot would have melted and distorted it a bit? And for a glock action to jam, the entire upper assembly looked to me in the picture as a true upper...just doesn't add up with the gun...I bet that gun found on him, when tested is not the gun used in the act...can't be, and I doubt he would be that stupid...I am thinking he is setting up circumstantial evidence...recognition alone isn't a smoking gun as 2 people can look so very much alike...they are gonna need DNA and a ballistic match...wouldn't you think? So far a ton of reasonable doubt.
I'm thinking he is smarter than everyone is giving him credit for...way way more to this.