'The Front of the Train Just Opened Up'

Post reporters, passengers work to recreate the accident:

In the first car of the six-car Red Line train, on a sunny-day evening commute, passengers heard a message familiar to any Metrorail rider: The conductor said they were holding for a moment -- there was a train ahead.

The train started moving again, picking up to moderate speed.

Then, without even the squeal of brakes as a warning, there was a crash, and the feeling of being lifted up as the train hit one that was stopped.

Read the full story on washingtonpost.com.