The man who was fatally shot Saturday morning by federal agents in Minneapolis has been identified as 37-year-old Alex Jeffrey Pretti.

Pretti was an intensive care nurse, an outdoor enthusiast and a dog lover, his parents told the Associated Press. A U.S. citizen, he was a Minneapolis resident and University of Minnesota graduate, The Minnesota Star Tribune reported, and worked in the ICU of a Department of Veterans Affairs hospital.

His parents told the AP he had been participating in the recent protests against President Donald Trump’s aggressive immigration enforcement that sprang up in Minneapolis in the wake of the killing of Renee Good by an ICE officer earlier this month.

“He thought it was terrible, you know, kidnapping children, just grabbing people off the street,” his father, Michael Pretti, told the AP. “He cared about those people, and he knew it was wrong, so he did participate in protests.”

Pretti was devoted to his Catahoula leopard dog, Joule, before her recent death, and took her on his many outdoor adventures, his parents told the AP, and was deeply bothered by the Trump administration’s slashing of environmental protections.