I was a TA, running twice weekly lab sessions in the evening. Being more than 10 minutes late to a lab usually earned a 0 grade for the day, so you usually needed a medical note or police report to get out of it.
At the end of class, one student who was 20 minutes late came up to me and apologized profusely. He was a quiet, unassuming Chinese guy with glasses and a below average grasp on the English language.
He told me that while he was walking to class, a guy in front of him was shot multiple times by a man in a nearby parked car, which then sped off. He claimed that he rushed over to the man, and attempted to attend to his wounds along with another bystander, but that he died before the ambulances arrived.
My first thought was, that's ridiculous. But then I noticed his shirt, jeans, and forearms covered in blood. Before I had a chance to really say anything, he beelines it to the exit and leaves. A couple hours later, out of curiosity, I Google 'Toronto shooting death' and sure enough, there's a 14-minute old article describing a fatal shooting that occurred earlier in the day, not terribly far from campus.
The next day, I get an email from the course instructor, informing me that the student had submitted a police report to confirm his involvement in the incident. Motherfucker held a man in his arms as he died and still made the effort to come to class. I can't even imagine what that guy was going through, as he quietly sat in the back of that room.
Shoutout /r/UofT, that's why he made CS POST and you didn't.