Alex Pretti, a 37-year-old ICU nurse, was fatally shot by federal officers during an anti-immigration rally in Minneapolis. Here's what we know so far.

Alex Pretti, a 37-year-old ICU nurse, was shot multiple times after agents attacked him on the street.

The killing of the 37-year old man sparked a surge of protests in a city already furious about the ICE killing of Renee Good.