Although he is not a citizen, he was able to buy a gun legally.
The whole case against him hinges on the word of a cop who says he saw him shooting with a 30 round mag. It sounds like that may be a lie.
I too think a non-citizen shouldn’t be able to buy a gun, but to jail and deport him over this, if he is innocent, is exactly the kind of thing gungrabbers would like to do to all of us.
Considering there has been video evidence presented to the court of him shooting with a 20 round mag that day, I'd say yes the policeman lied.