Robert Crimo III pleads guilty in Highland Park mass shooting at July 4 parade that left 7 dead, dozens injured

The tattoo-covered pyscho accused of killing seven people and injuring dozens more when he opened fire on Fourth of July parade-goers near Chicago in 2022 pleaded guilty Monday — just moments before opening arguments in his murder trial were set to kick off.

Robert E. Crimo III, 23, withdrew his earlier not-guilty plea for the slew of murder and attempted murders charges over in the Highland Park shooting.

Crimo, who was dressed in a dark suit, sat silently beside his lawyers in the Lake County circuit courtroom.

Prosecutors had initially charged him with 21 counts of first-degree murder — three counts for each person killed — as well as 48 counts of attempted murder. The less serious 48 counts of aggravated battery were dropped by prosecutors before jury selection began last week.

He is scheduled to be sentenced on April 23.