Bystander videos verified by CBS News show the scene from multiple angles before the fatal shooting of 37-year-old Alex Prett in Minneapolis.

Tensions are escalating in Minneapolis after Alex Jeffrey Pretti, a U.S. citizen, was killed during an encounter with immigration officials on Saturday morning. Here is what to know.

A series of gunshots are heard and Pretti slumps to the ground, followed by additional gunfire. Another video, taken across the street from where the shooting occurred, shows protesters yelling at officers during the immigration enforcement operation.

Sens. Chris Murphy and Alex Padilla have spent the past two days calling colleagues to whip opposition to the DHS funding bill, according to a source familiar with the process.

Border Patrol agents shot and killed a 37-year-old man in Minneapolis yesterday. The victim, Alex Jeffrey Pretti, was an intensive care nurse at a Veterans Affairs hospital. He was a U.S. citizen, the Minneapolis police chief said.

5 p.m. Some 75 protesters gathered outside the Portland ICE building by mid-afternoon. Another 300 gathered at Elizabeth Caruthers Park down the street before marching to Portland ICE. Speakers condemned the latest shooting and called for federal immigration agents to decamp the city.

The Minnesota Timberwolves ' game against the Golden State Warriors in Minneapolis on Saturday, Jan. 24 was postponed hours after federal officers shot and killed a man in the city . "The decision was made to prioritize the safety and security of the Minneapolis community," the Timberwolves said in a statement.

Republican Sen. Bill Cassidy calls for full investigation after a Border Patrol agent shot and killed a man in Minneapolis during a DHS operation on Saturday.