This photo provided by Nancy Sack shows Carter Lange, Kim Gustavson, Jason Lange, Matthew Gustavson, and Travis Gustavson. Sack’s grandson, Travis Gustavson, died at age 21 in Mankato, Minn., after overdosing on what he thought was heroin but was actually laced with fentanyl.
Katie Tettam/Nancy Sack via AP
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