How many points is a gun charge for the feds?

The points are based on many factors. There is no way to say without reviewing the entire case.

If he had a gun, they might be bringing new charges against him. No way to speculate.

If a person get charged with a possession of a gun, can the judge base his judgement off of other things? Maximum sentence for a

A judge can consider all of the offense conduct, even if it is not included in the charges.

Federal inmates serve 85%. 65% is nothing but a rumor.

If they have evidence of a sale, they are likely to pursue the charges. If not, they could be dismissed. They do not need to catch you with drugs...

It is a legal sentence. Would you prefer 4 years in prison? That was the other option. You got a break. Stop complaining about it.

Will an inmate who commits a crime in two states have to serve in one then go to the other?

It depends on if he is charged by both states. No way to say. If both states charge him, he will have to face charges in both places.

Yes, they will seize your tax refund which is why you should reduce your withholding so you don't have a refund.

What is the age for juveniles and when did that change? Also is it retroactive?

Even juveniles can be treated as adults for criminal cases which is likely what happened here. I don't think you are going to convince anyone now...

Can I get some help?

The way to get a lawyer is to make appointments with several criminal defense attorneys and meet with them to discuss the case.