It was a terrifying scene inside the wreckage of the New York bound Amtrak train that derailed just outside Philadelphia last night.
Dramatic cell phone video showed injured passengers helping each other out of the wreck.
Among the passengers on the Amtrak train was Kayla Bonham.
INSIDE EDITION spoke to him as he left the hospital. He said, "I am very blessed to be as safe as I was compaired to pretty much everyone else on that train. There was a lot of people that were hurting on that train. I am very fortunate enough to be able to walk out of that."
One of the passengers was former Pennsylvania Congressman Patrick Murphy.
He said, “It was mayhem at first. A lot of blood a lot of folks got banged up, hurt bad. I checked my body parts, I was okay, the guy next to me was unconscious so I kind of slapped him a little bit and got him up and he was, believe it or not, okay."
Among the seven dead are 20-year-old U.S. Navy midshipman Justin Zemser and 48-year-old Associated Press reporter, Jim Gaines,
Among those not accounted for is Rachel Jacobs, just named the CEO of an internet startup. Her friends are making frantic appeals on social media to find her.
Published reports say the train may have been going too fast for the curve. The Wall Street Journal reports that the train may have been going at 100 mph when it hit the 50 mph curve where it crashed.
And amid all the carnage, a professional violinist is sparking outrage for complaining she lost her favorite violin.
Passenger Jennifer Kim tweeted: “Amtrak thanks a lot for derailing my train. Can I please get my violin back from the second car?”
There was an immediate social media backlash. “Distasteful,” went one response.
Some woman was complaining to Amtrak after her violin got destroyed. Are you kidding me...— Steve Hallett (@hallettwx) May 13, 2015
In the moments after the crash hundreds of passengers found themselves in a desperate situation. Would you know how to get out alive if this happened to you?
INSIDE EDITION's Les Trent said, "We are on a moving train right now, so, what do you do if there is an accident? With me is Scott Sour, he is train expert here on the system in the Philadelphia area. Walk me through some of the basics. What is right behind us right here?"
Sour told Trent, "Inside this compartment is the door control. In an emergency situation and you want to get out in a hurry, follow the instructions [attached to the wall]. You want to open the compartment, press down the red handle, press that down and what that does is that it frees the door that they came in on. They can actually go out through that door, slide it open manually and get off the train."
Trent was then showed what to do if you have to go out through a window.
Sour said, "In the event that you have to go out through the window, you are going to pull on this red handle. When you pull on this red handle and all that rubber gasket is going to come with it. You are going to discard it. It frees up the window and you are able to grab the window by a handle, pull that window in, discard it, and then you will be able to get out through this window."
Lending credence to the theory that speed may have been a factor, the federal railroad administration says the tracks were inspected just hours before the derailment and there were no defects found.
Watch Below: Search Continues for Missing Amtrak Passengers After Derailment