A Michigan businessman, Noor Noel Kestou, has been convicted of involuntary manslaughter in connection to the deadly explosion at a building he owned in Clinton Township in March. The incident resulted in the death of a 19-year-old man and injuries to a firefighter. The building housed a vaping industry, and thousands of nitrous oxide and butane canisters were stored inside, causing the explosion to propel debris and canisters over a wide area.