Fort Wayne, Ind. (WOWO):  Police need your help solving an attempted gas station robbery from last month. Just after midnight on the morning of June 25, a suspect pulled a knife and demanded cash from the cashier at the Shell Gas Station on East State.

The suspect left empty-handed without cash.

Authorities are looking for a black man with long hair wearing a dark-colored shirt. You can see view surveillance video at http://youtu.be/pUKr2RdtCFY http://youtu.be/OtXyexfsXyI. 

If you have information contact Crime Stoppers or the Fort Wayne Police Department.