im a member of another forum nyctf, and some members posted the image in the article of the engine and someone else noticed what they think looks to be bullet holes? are you seeing what looks like what they are too?
http://www.philly.com/philly/news/20150514_Amtrak_Derailment__What_we_know.html
I see distinct points of impact from projectiles/bullets on the engine windshield in the link above.
If you look at this picture of the passenger window that was hit at about the same time, you'll see 3 distinct points of impact.
The window has circular damage patterns as seen when a bullet hits something.
We'll still haven't seen any pics of the damage to the windshield of the other engine that was hit.
I don't think these are unrelated incidents, I truly believe this is sabotage.
My theory:
Succession of projectiles (bullets) hit the windshield
Instinct is to duck - he ducks
Hits his head - he has 19 stitches on his head
He's momentarily unconscious and loses control
Comes to after the accident
I know that if someone shot multiple times at my windshield, I would naturally and instinctively duck.
I also doubt that I would be able to control my vehicle.
Unless those bullets/projectiles actually penetrated the window and they probably didn't, they are going to be somewhere outside.
From the Slate story about the passenger window:
The conductor soon returned with a man who appeared to be a maintenance worker. He examined the glass and noted that the impact didn't break "the second layer."
http://www.slate.com/blogs/the_slatest/2015/05/13/septa_projectile_two_philly_trains_suffered_window_damage_around_the_same.html