(WLUK/AP) – Alex Jeffrey Pretti, the 37-year-old man shot and killed Saturday by federal forces in Minneapolis, graduated from Green Bay’s Preble High School in 2006.

Family members tell the Associated Press that Pretti was an intensive care nurse at the Veterans Administration who cared deeply about people and was upset by President Donald Trump’s immigration crackdown in his city.

At Preble, Pretti performed in the show choir and musicals. He also played football, baseball and ran track. He was a Boy Scout and sang in the Green Bay Boy Choir.

Alex Pretti performs in a musical at Green Bay Preble High School during the 2004-2005 school year. (Photo credit: Preble '04-'05 Yearbook)

Alex Pretti performs in a musical at Green Bay Preble High School during the 2004-2005 school year. (Photo credit: Preble ’04-’05 Yearbook)

Pretti was an avid outdoorsman who loved getting in adventures with Joule, his beloved Catahoula Leopard dog who also recently died. He had participated in protests following the killing of Renee Good by a U.S. Immigration and Customs Law Enforcement officer earlier this month.

“He cared about people deeply and he was very upset with what was happening in Minneapolis and throughout the United States with ICE, as millions of other people are upset,” said Michael Pretti, Alex’s father. “He felt that doing the protesting was a way to express that, you know, his care for others.”

Green Bay Mayor Eric Genrich released a statement, calling for a proper investigation into Saturday’s shooting.

“Another American citizen is dead as the result of the federal government’s occupation of an American city, and the victim, Alex Pretti, was a graduate of a Green Bay high school,” said Genrich. “Without knowing all the facts of the case, we can say with certainty that a full, transparent, and independent investigation must be conducted. I mourn his tragic death with his friends and family and join the chorus of Americans who are rightfully demanding the federal government change course and enforce immigration law in keeping with local, state, and federal laws and the U.S. Constitution.”

Pretti was a U.S. citizen, born in Illinois. Like Good, court records showed he had no criminal record and his family said he had never had any interactions with law enforcement beyond a couple of traffic tickets.

In a recent conversation with their son, his parents, who live in Colorado, told him to be careful when protesting.

“We had this discussion with him two weeks ago or so, you know, that go ahead and protest, but do not engage, do not do anything stupid, basically,” Michael Pretti said. “And he said he knows that. He knew that.”

The Department of Homeland Security said that the man was shot after he “approached” U.S. Border Patrol officers with a 9 mm semiautomatic handgun. Officials did not specify if Pretti brandished the gun, and it is not visible in bystander video of the shooting obtained by The Associated Press.

Family members said Pretti owned a handgun and had a permit to carry a concealed handgun in Minnesota. They said they had never known him to carry it.

The family first learned of the shooting when they were called by an Associated Press reporter. They watched the video and said the man killed appeared to be their son. They then tried reaching out to officials in Minnesota.

“I can’t get any information from anybody,” Michael Pretti said Saturday. “The police, they said call Border Patrol, Border Patrol’s closed, the hospitals won’t answer any questions?”

Eventually, the family called the Hennepin County Medical Examiner, who they said confirmed had a body matching the name and description of their son.

After graduation, he went to the University of Minnesota, graduating in 2011 with a bachelor’s degree in biology, society and the environment, according to the family. He worked as a research scientist before returning to school to become a registered nurse.

Pretti’s ex-wife, who spoke to the AP but later said she didn’t want her name used for fear of retaliation, said she was not surprised he would have been involved in protesting Trump’s immigration crackdown. She said she had not spoken to him since they divorced more than two years ago and she moved to another state.

She said he was a Democratic voter and that he had participated in the wave of street protests following the killing of George Floyd by a Minneapolis police officer in 2020, not far from the couple’s neighborhood. She described him a someone who might shout at law enforcement officers at a protest, but she had never known him to be physically confrontational.

She said Pretti got a permit to carry a concealed firearm about three years ago and that he owned at least one semiautomatic handgun when they separated.

Pretti lived in a four-unit condominium building about 2 miles from where he was shot. Neighbors described him as quiet and warmhearted.

“He’s a wonderful person,” said Sue Gitar, who lived downstairs from Pretti and said he moved into the building about three years ago. “He has a great heart.”

If there was something suspicious going on in the neighborhood, or when they worried the building might have a gas leak, he would jump in to help.

Pretti lived alone and worked long hours as a nurse, but he was not a loner, his neighbors said, and would sometimes have friends over.

His neighbors knew he had guns – he’d occasionally take a rifle to shoot at a gun range – but were surprised at the idea that he might carry a pistol on the streets.

“I never thought of him as a person who carried a gun,” said Gitar.

His parents said their last conversation with their son was a couple days before his death. They talked about repairs he had done to the garage door of his home. The worker was a Latino man, and they said with all that was happening in Minneapolis he gave the man a $100 tip.

Pretti’s mother said her son cared immensely about the direction the county was headed, especially the Trump administration’s rollback of environmental regulations.