A newly released video shows Alex Pretti confronting federal officers on a Minneapolis street 11 days before he was fatally shot in another encounter with CBP agents, a Pretti family representative confirmed to CBS News.

Donald Trump on Friday called Alex Pretti an "agitator and, perhaps, insurrectionist," marking an increase in the intensity of his rhetoric toward the ICU nurse fatally shot by federal agents after the president recently said he wanted to "de-escalate a little bit" in Minnesota.

Between Jan. 24 and Jan. 29, Trump officials' statements evolved in a case that has become a major political liability for the president.

The Department of Homeland Security says the FBI is now leading the probe into the shooting of Alex Pretti, the Minneapolis resident killed by Border Patrol officers.

DOJ launches civil rights investigation into fatal Border Patrol shooting of Alex Pretti in Minneapolis, Deputy Attorney General Todd Blanche confirms.

The video, recorded Jan. 13, shows Pretti kicking out the rear taillight of a vehicle before being tackled by federal officers.

"He literally just had his whole life ahead of him when this tragic event happened," Dr. Aasma Shaukat told Newsweek.

A group of hundreds, many of them nurses still wearing badges after walking from their nearby hospitals, performed a Nightingale Tribute — a traditional send off for nurses — for Pretti, who was killed Saturday by immigration enforcement agents in Minneapolis.