Alam was convicted in federal court of eight felonies " including assaulting law enforcement " and three misdemeanors for his role in the attack.

Witnesses said he broke the glass of a door through which insurrectionist Ashli Babbit climbed before she was shot dead by an officer defending the US House chambers.

The Trump administration later reached a $5m settlement to settle a wrongful death lawsuit filed by his slain supporter's family.

At Alam's US Capitol attack trial, prosecutors outlined how he was among the first of a mob that entered the building from its west lawn and hurled items at police from a balcony.

He also used a helmet to shatter three glass panes in the door through which Babbitt was fatally shot before leaving while urging others to come back later with guns.