Zhanpeng Yi, neighbor and classmate of Ming Qu, walked home alone with an umbrella while it was pouring heavily around midnight on Wednesday. When he arrived at his steps, he paused for a second. Qu’s car wasn’t parked there.

“This is unusual because he doesn’t often use his car,” Yi said. 

When he woke up around 9 a.m., he went out and still didn’t see the car.