Malcolm Mike Winffel, 45, was killed while intervening in an attempted carjacking at Westfield Montgomery Mall in Bethesda, Maryland. On May 6, 2016, Winffel and another man stepped between a woman and a gunman; the shooter fired and fatally wounded Winffel in the chest. He was a married father of two.

The shooter, identified as 62-year-old Eulalio Tordil, had already killed his estranged wife the previous day and went on a violent spree. After killing Winffel and wounding the other Good Samaritan, Tordil fled, later killing another bystander during a separate attempted carjacking in Aspen Hill before being captured the same day.

In April 2017 Tordil pleaded guilty to two counts of first-degree murder and two counts of attempted first-degree murder for the Montgomery County crimes and received four consecutive life sentences without parole. Anyone who knew Malcolm or has information about him or his final moments is asked to share what they remember.