Cascading pile of problems brings Red Line to its knees

It's not just that there was a "medical emergency" at Charles/MGH (although if you're going to have a medical emergency ..), but that an inbound train chose to die on the Longfellow this morning

"The worst is having people walk by, watching you not move," Marti V. tweets. At least, until somebody pushes the emergency button, apparently just because they can.

Ben Becker adds: "On bridge for at least 30 min, probably 40. Charles platform now so packed that people can't move."

Photo of Charles/MGH platform after the T asked everybody to just walk to Park Street.