Thompson, 47, a career prosecutor, objected to that approach, as well as to the Justice Department’s refusal to include state officials in investigating whether the shooting itself was lawful, the people familiar with his decision said.Get Starting PointA guide through the most important stories of the morning, delivered Monday through Friday.Enter EmailMinneapolis police Chief Brian O’Hara said in an interview that Thompson’s resignation dealt a major blow to efforts to root out rampant theft from state agencies. The fraud cases, which involve schemes to cheat safety net programs, were the chief reason the Trump administration cited for its immigration crackdown in the state. The vast majority of defendants charged in the cases are US citizens of Somali origin.“When you lose the leader responsible for making the fraud cases, it tells you this isn’t really about prosecuting fraud,” O’Hara said.The other senior career prosecutors who resigned include Harry Jacobs, Melinda Williams, and Thomas Calhoun-Lopez. Jacobs had been Thompson’s deputy overseeing the fraud investigation, which began in 2022. Calhoun-Lopez was the chief of the violent and major crimes unit.Thompson, Jacobs, Williams, and Calhoun-Lopez declined to discuss the reasons they resigned. The Justice Department did not immediately respond to a request for comment.Tuesday’s resignations followed tumultuous days at the US attorney’s office in Minnesota as prosecutors struggled to manage the outrage over Good’s killing, which set off angry protests in Minnesota and across the nation.After Good was shot, the Justice Department decided to forgo a civil rights investigation that would establish whether the ICE officer’s use of deadly force was justified. That decision led several career prosecutors at the department’s civil rights division in Washington to resign in protest, MS Now reported Monday.Instead, the Justice Department launched an investigation to examine ties between Good and her wife, Becca, and several groups that have been monitoring and protesting the conduct of immigration agents in recent weeks. Shortly after Wednesday’s fatal shooting, Homeland Security Secretary Kristi Noem referred to Good as a “domestic terrorist.”Becca Good said in a statement last week that she and her wife had “stopped to support our neighbors” when they got into a tense confrontation with ICE agents that led to the shooting. “We had whistles,” Becca Good wrote. “They had guns.”Thompson strenuously objected to the decision not to investigate the shooting as a civil rights matter, and was outraged by the demand to launch a criminal investigation into Becca Good, according to the people familiar with the developments, who were not authorized to discuss them publicly.Thompson had originally set out to investigate the shooting in partnership with the Minnesota Bureau of Criminal Apprehension, a state agency that reviews police shootings. Senior Justice Department officials overruled the decision to cooperate with the state agency.Drew Evans, the superintendent of the bureau, called Thompson’s departure a major setback for the effort to root out fraud in the state and for public safety.“We’re losing a true public servant,” Evans said. “We really need professional prosecutors.“The absence of a credible and comprehensive investigation into Ms. Good’s killing stands to undermine trust in our public safety agencies,” Evans added.Thompson’s departure came during the chaotic immigration crackdown in Minnesota, which has angered many residents and left officials bracing for an escalation of violence.Begun in December with the deployment of roughly 100 federal agents from out of state, the operation has swelled to include some 2,000 federal agents. By comparison, the Minneapolis Police Department has 600 officers.Local leaders and immigrant rights groups have decried the agents’ conduct, saying they have been stopping people based only on looks and accents. Often, these stops have led to the violent arrest of both immigrants and US citizens, according to local officials and observers who have recorded mayhem using cellphones.On Monday, Minnesota’s attorney general and the mayors of Minneapolis and St. Paul filed a lawsuit in federal court demanding an end to the crackdown, asserting that it had led to numerous abuses and civil rights violations.The Trump administration has cited the fraud investigation that Thompson led to justify the surge of agents, which federal officials have called the largest immigration enforcement operation in history.Most of the defendants charged to date are of Somali ancestry but are US citizens by birth or naturalization.President Trump and several top aides have seized on the matter to argue that Somalis are swindling the nation. Trump has called Somalis “garbage,” and he said his administration was considering denaturalizing some, because, he says, “they hate our country.”Thompson grew frustrated in recent weeks as the immigration surge became a distraction for the office’s work on fraud, undermining the goal the administration said it was trying to pursue, according to people familiar with his thinking.The fraud cases, which involve plots to bill state agencies for safety net services that were never provided, have cost taxpayers several billion dollars, according to Thompson.After new facets of the investigation came to light last fall, the scandal became a major crisis for Governor Tim Walz of Minnesota, who has struggled to explain why so much money was stolen on his watch.Walz, a Democrat who had been hoping to win a third term in November, sought for months to weather the scandal by strengthening safeguards.But this month, facing threats and investigations from federal agencies, the governor suspended his campaign.