Passengers have questions, no answers on why CTA train crash happened

A person is taken away via ambulance Thursday after a Chicago Transit Authority train crashed into a piece of equipment that was on the rails near the Howard CTA station on the North Side. (Ashlee Rezin/Sun-Times)

Donald Wheeler was a passenger on the Yellow Line train that rear-ended a snowplow Thursday near Howard Street. He feels lucky to have walked away from the crash.

He was on his way downtown from Skokie for lunch at the time, and not far from the operator.