One of the men who shot Damian Lillard's brother in a mall parking lot last year has plead guilty to attempted murder ... TMZ Sports has learned.
As we previously reported, 20-year-old Jahrell Lillard -- the Portland Trailblazers star's half brother -- was shot on March 29, 2018 during an altercation with 2 men in Clackamas County, Oregon.
Cops say Lillard was shot in the Clackamas Town Center parking lot in what appeared to be a targeted attack -- with witnesses saying they heard 5-to-10 gunshots fired in the confrontation.
Jahrell suffered injuries .