Fucking tragic shit. Condolences to the families of all three of these young guys... that is way too soon to go, and in such a tragic way. They didn't experience life to the fullest.
RIP to all 3 of them.
Be safe on those tracks and look twice... keep your ears open for the rails clicking as mentioned by a few people earlier in the thread...
Also, cosign on what damo wrote.
peace.