The WORST (from his perspective) that can happen is that he can go to prison for 10 to 40 years, or for life.
The BEST (from his perspective) that can happen is that the prosecutor chooses not to file the case.
And, no, he was not "just around at the wrong time." This is a serious offense and the type of offense that one has to try and commit. You do not accidentally commit an aggravated robbery!
5-12-103. Aggravated robbery.
(a) A person commits aggravated robbery if he or she commits robbery as defined in 5-12-102, and the person:
(1) Is armed with a deadly weapon;
(2) Represents by word or conduct that he or she is armed with a deadly weapon; or
(3) Inflicts or attempts to inflict death or serious physical injury upon another person.
(b) Aggravated robbery is a Class Y felony.
For a first offense, he has certainly decided to go for the gold! A class Y felony in AR is the most serious type of offense there is! His attorney may be able to get a plea down to a lesser offense, but it is very likely that a prison stint is in his near future. It may be time to reconsider your choice of boyfriends.

