Minko said he was at the top of a stairway headed down to the PATH train when he heard screams and saw the NJ TRANSIT train crash into the station around 8:45 a.m.
"The train simply did not stop," Minko told CBS2. "It's similar to a situation in which you try and change a gear and a gear gets stuck, and it would not stop."
One person was killed and more than 100 people were injured.
Minko was not among those who were hurt.
"It was mass confusion," he said. "And the people that I was with, whoever they may have been, it was just a mad scramble to get away from the scene."
Minko called witnessing such a tragedy "a harrowing experience."
"I'm shook up and legs are wobbly," he said. " ... To me, it's hard to believe I saw something like this."
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