Video shows officer using stun gun on Chicago man

OXFORD, Ohio -- Video of a police officer using a stun gun on a Chicago man outside a bar near Miami University shows the man getting shocked for about 10 seconds as he rolled around on a sidewalk.

Oxford, Ohios police officer Geoff Robinson used the weapon on 24-year-old Kevin Piskura on Saturday night as the officer tried to break up a fight. Piskura, a Miami graduate who lives in Chicago, remains in critical condition at a Cincinnati hospital.

Authorities on Tuesday released video shot by a camera on the stun gun. Police say Piskura fought with bouncers and the officer before being shocked.

The Butler County Sheriff's Office is investigating the officer's actions.