Schwartzenberger, who worked out at the Vice gym with her two boys, was killed while part of the group serving a search warrant at the home.
"Laura is someone that always encouraged everyone. Everyone wanted to be Laura’s partner, everyone wanted to be here and work out with her," Brown said. "She was just a gem."
Brown said the 43-year-old Schwartzenberger was one of several agents who worked out at the gym and was someone others looked up to.
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"She was one in a million," Brown said. "Her essence as a hero to this community, it’s huge. It will be a huge void."