NEW: Hunter Biden Case Goes to Jury

The jury has begun deliberations on the three felony counts Hunter Biden faces in his federal gun case.

Prior to the jury getting the case, the government rebutted defense attorney Abbe Lowell's closing argument by asserting again that Hunter Biden was a drug addict when he bought the gun at the center of the case and that he knew it -- beyond a reasonable doubt.

There are "seven ways to Sunday" to show Hunter Biden was an addict and it was "preposterous" that he -- a "Yale-educated lawyer" -- didn't know he was buying a gun while knowingly addicted, prosecutor Derek Hines argued.