DETROIT (WWJ/AP) – A man arrested following the stabbing of a 14-year-old boy on a Detroit public bus has been released from jail, after spending less than a day in custody.

Detroit police say Friday that, despite being identified in a lineup, the man was released after detectives determined he was not the suspect wanted in connection with Wednesday’s stabbing.  He let go after questioning at the Detroit Detention Center.

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Police said teen boy tried to intervene as two riders argued on the DDOT bus. The argument apparently spilled onto the street and at some point, the suspect pulled out a knife. Once the teen noticed the weapon, he allegedly ran back onto the bus. The suspect reportedly followed the teen back onto the bus and stabbed him in the chest before fleeing the scene.

Police told a Detroit television station that the teen was defending himself and punched one of the men in the nose before the stabbing.

The teen, whose name has not been released, ran from the bus and called 911. He was rushed to the hospital in critical condition.

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The man responsible for the stabbing still is being sought.

The  suspect, described as a black male with a medium brown complexion in his 40s or 50s. He was wearing a black skull-cap with a red “D” letter, a green jacket over an orange sweater with a hood and black pants.

Anyone with information is urged to contact Detroit police at 313-596-5240.

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