This time last year, Matthew Klaus was working with Rochester police on an undercover drug investigation.
But the 32-year-old father wasn't an officer. He was a heroin addict who had recently completed his longest stretch of sobriety since he was a child and was attempting to restart his life.
He died of a heroin and fentanyl overdose on March 30, 2019, in between police-sanctioned drug buys, raising fresh concerns about the widespread but opaque practice of using civilians to investigate criminal matters.
His parents, John and Denise Klaus, are taking their fight to the Legislature to ensure no one suffers as their family has. In the wake of their grief, they initiated and helped write "Matthew's Law," which seeks to overhaul the use of informants across Minnesota.
"At one point I thought: No one's looking out for the informant, and somebody needs to," John Klaus said.
"It was really frustrating because it's kind of like they're just throwing people away," Denise Klaus said.
Earlier this month, they told their son's story before a House committee.
"If there had been a policy in effect that was written to protect the informant, Matthew still might be here today," Denise Klaus told the committee.