The man killed after Portland protesters clashed with Trump supporters was a backer of the right-wing group Patriot Prayer, it was reported Sunday.

Joey Gibson, head of the Washington state group, also described the dead man as a “good friend,” the Associated Press reported.

An AP freelance photographer who was in the area where the shooting took place Saturday night said the man who was shot was wearing a Patriot Prayer hat.

The group has clashed with Portland Black Lives Matters protesters in the past.

The mayor of Portland, Oregon, and President Donald Trump engaged in a real-time argument Sunday as the president sent a flurry of critical tweets about Ted Wheeler as the mayor was holding a press conference about the fatal shooting of a right-wing supporter in his city the night before.

After Trump called Wheeler, a Democrat, a “fool” and blamed him for allowing violence to proliferate in the liberal city, the visibly angry mayor lashed out at the president, addressing him in the first person through the TV cameras.

A night of deadly violence Saturday in Portland had America's two presidential candidates speaking out Sunday afternoon. And their remarks were about as different as their national conventions over the last two weeks.

The fact that there was another night of protests for Black Lives Matter (BLM) and for social justice in Portland isn't anything new, as Saturday marked the 94th-consecutive day since they began in late May. Saturday turned deadly as a group of Donald Trump supporters clashed in the streets with BLM supporters. One man was shot dead during the confrontations.