A man pulled a Samurai sword in the middle of passengers on the light rail early Saturday morning.
One of the light rail riders caught the whole thing on tape.
The man who took the video was taking the light rail home from a night of partying in Tempe.
A fight broke out and a man pulled a sword around 2 a.m., when the light rail was near Central Avenue and Camelback Road,
"I was like, 'What the hell, who carries a sword?'," said Juan Vargas.
Juan Vargas took the video, just inches from the sword.
"I kinda took a step back first so I could get back a little more and I just gotta keep recording this because I don't know what's gonna happen," said Vargas.
"As soon as that guy pulled out the sword, everybody was like,'Whoa'. It got really quiet and everybody was like 'Okay..okay, I guess don't do nothing to get him mad or don't upset him," said Vargas.
FOX 10 talked to local Samurai sword instructor Dana Abbott about the unusual weapon.
"If I stood here like this, drew the sword, made a cut like that, I'd take off any extremity in the way with ease," said Abbott.
Abbott said the weapon can be found for about $150 but he thinks the light rail Samurai may have been pulling a stunt.
"You noticed the minute I started unwrapping it, you started standing back so when the guy pulled the sword, as a matter of fact, they come on him, didn't they? He must've been a friend or someone that they knew wouldn't go crazy swinging it," said Abbott.
Vargas believes this was the real deal. He's glad no one was hurt and that he kept recording.
"I just cannot believe how big it's gotten now," said Vargas.
Valley Metro and Phoenix Police are investigating but so far, they have no suspects; they don't know who the Samurai is.
Valley Metro officials said they have increased security during their late night service.
Watch Vargas' full video: www.youtube.com/watch?v=MRMNwq3ehFc
*WARNING: Video has strong language and may not be appropriate for children*