Minneapolis live updates: DOJ launches investigation into Pretti killing, Deputy AG Blanche says

Former Homeland Security Assistant Secretary John Cohen said the contradictory statements coming from DHS about these two Americans shot in Minnesota is creating a profound credibility problem for the administration.

"Yeah, in many respects, I don't recognize the department I worked for and respect and love," Cohen said. "Every piece of commentary you see on social media or the or in the media that that calls into question the integrity, the honesty and the value of these operations, causes the public to lose trust in the government and in these operations."

The American Federation of Government Employees, the largest federal employee union which also represented Alex Pretti, issued a statement Monday night calling for the resignations of DHS Secretary Kristi Noem and Deputy White House Chief of Staff Stephen Miller.

AFGE President Everett Kelley contended that their immigration policy and actions led to the nurse's death.

"Taken together, the actions of Miller and Noem, both before and after Alex's killing, make clear they are unfit to serve in their current positions, or any position requiring the public trust," Kelley added.

An online fundraising campaign set up in memory of Alex Pretti, who was killed in a shooting involving federal agents in Minneapolis on Saturday, has raised over $1.5 million.

-ABC News' Chris Looft

The chief federal judge in Minnesota says the Trump administration has failed to comply with orders to hold hearings for detained immigrants and ordered the head of Immigration and Customs Enforcement to appear before him Friday to explain why he shouldn't be held in contempt.

In an order dated Monday, Chief Judge Patrick J. Schiltz said Todd Lyons, the acting director of ICE, must appear personally in court. Schlitz took the administration to task over its handling of bond hearings for immigrants it has detained.

"This Court has been extremely patient with respondents, even though respondents decided to send thousands of agents to Minnesota to detain aliens without making any provision for dealing with the hundreds of habeas petitions and other lawsuits that were sure to result," the judge wrote.

The order comes a day after President Donald Trump ordered border czar Tom Homan to take over his administration's immigration crackdown in Minnesota following the second death this month of person at the hands of an immigration law enforcement officer.