MONTERY PARK (CBS) — A deadly officer-involved shooting in Monterey Park was under investigation Monday after police responded to a disturbance call and shot a man, who reportedly went on a rampage.

The deadly confrontation at a Carl’s Jr. restaurant was caught on camera.

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The video taken by KCAL9 StreetTeam member Frank R. captured the deadly gunfire by police, who shot a man reportedly armed with a pipe.

“He was just like, nervous breakdown, you know; we didn’t know what to do,” said Jimmy Aragon, who witnessed the incident.

Police and witnesses described a man in his 20s carrying a backpack, who placed an order, but left empty handed.

“He just came back and started breaking all of the windows,” Aragon said.

All of the restaurant’s windows and the front door were smashed. Police say the man shattered the glass with a 3-foot length of pipe.

“‘Stop, put the pipe down,’ stuff like that. Because they were yelling at him,” witness Nick Escalante recalled.

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First the man was struck with a taser gun, but witnesses said it did not seem to faze him.

“He took the shocker off… the taser. He threw it at the cops,” Escalante said.

“He managed to just yank it off and was still walking away,” Aragon said.

After several warnings by police, Aragon said the man lifted the pipe up above his head near an officer and officers responded with gunfire.

Shots from an officer hit a neon sign a block away. A piece of the sign broke of and struck a woman, who suffered minor injuries.

Police did not release a motive, but said that they did not believe that the man was trying to rob the restaurant.

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He later died in the hospital.