Benjamin Morrow always came to work at a Beaver Dam food processing plant smelling like moth balls and wearing clothes with tiny holes in them.
He grinned strangely while scrolling through his smartphone, and he scoured the internet at work for information about guns, ammunition and chemicals.
Then a shooting at a high school in Parkland, Florida, left 17 students and staff dead, and Morrow started talking about the possibility of a mass assault in their workplace.
Morrow died March 5, 2018, in an explosion while he stood at his kitchen stove, where investigators say he may have been brewing the type of chemical popular in ISIS bombs. The blast was so strong it blew his apartment windows into the grass below. When firefighters arrived, they found beakers of clear liquid in a mini-fridge, a purple rubber glove stretched over the top of each.
Morrow, 28, was the only casualty in the blast, which happened on a Monday afternoon. Police quickly evacuated residents of the building's other 15 units. It was the last time many saw the insides of their homes: the hazardous nature of the chemicals meant they couldn't go back.