We Need Answers From These Guys
I've ridden the Ferry long enough to know a bunch of the employees, some of whom are former schoolmates. Ferry employees are broken down to two groups: the Blues and the Whites. Blues are deckhands: the grunts. Whites are "management," pilots, captains, etc.

One of the nasty little not-so-secret secrets of both groups is you do not have a chance in hell of getting hired without someone on the inside. This is gonna make the investigation into what happened nearly impossible. Eveybody's gonna cover everybody's ass. The poor bastard who tried to off himself is gonna be the fall guy, but the entire crew, from the captain down to the broom pushers, are as much to blame.

They were all on that boat, and saw the pilot was WAY off his approach. Or should have seen it if they were paying anything resembling attention. They really only have two missions on each passage: get the riders on board and leave the dock safely then reverse the procedure when they get to the other end of the ride. The rest of the time they are pretty much maintainance ghosts, tasked to observing the boat's engines, sweeping up the decks, etc.

Anybody riding the boat regularly knows the rhythm of the engines. When heading to Staten Island I can have my nose buried in a book or newspaper and know precisely when the boat is on final approach. I can look out the westward windows and be assured that the "five minute bouy" will be there because the engines begin throttling down at that point in the ride.

They all should have known something was wrong well before they ever got near that pier.