On April 6, 2018, 16 people died and 13 were injured after a bus taking the Humboldt Broncos of the Saskatchewan Junior Hockey League to a playoff game collided with a transport truck at a rural intersection in Saskatchewan. Five of the survivors -- Brayden Camrud, Graysen Cameron, Ryan Straschnitzki, Tyler Smith and Derek Patter -- attended Game 4 of the Western Conference Final and made a donation to offset Stelter's medical costs.
Stelter is a 6-year-old with glioblastoma, a type of brain cancer. The Oilers fan was diagnosed with a brain tumor one year ago, going through four rounds of chemotherapy and 30 sessions of radiation to remove it.