Edwin Ledgard, a Big Boy restaurant worker from Cincinnati, Ohio, with a history of violence, was arrested Friday for pouring animal medicine into a pot of coffee in hopes of killing customers.

Edwin Ledgard, 36, went into a Big Boy restaurant where he worked on his day off in order to follow a “delusion” he had to kill.

The man was not scheduled to work on Friday, so when a co-worker saw him tampering with the coffee pot around 4:00 p.m. on Friday, it raised a mental red flag.

One of Edwin Ledgard’s colleagues saw him pouring vials of an animal medication into a pot of brewing coffee and a salt shaker before stopping him.

Edwin Ledgard, a Big Boy restaurant worker from Cincinnati, Ohio, with a history of violence, was arrested Friday for pouring animal medicine into a pot of coffee in hopes of killing customers

Edwin Ledgard brought three vials of Dextran with him, attempting to poison customers using the medicine that treats anemia in baby pigs. The drug is also known as Dexiron or Iron-500.

For humans, the substance can be fatal, with common side effects including anaphalactic shock, respiratory failure, or excessive water accumulation in the brain.

After his coworker stopped Edwin Ledgard from serving the poisoned coffee and salt, the vials were taken away from him and he was arrested for one count of contaminating a substance for human consumption.

Upon arrest, Edwin Ledgard told police that he was following a “delusion” to kill customers.

This is not his first run in with the law. Edwin Ledgard was just released in late May of this year after serving a portion of an one-year sentence of a 2010 stalking charge.

Prior to that, Edwin Ledgard spent a month in jail after he hit a corrects officer in jail.

Edwin Ledgard is now in the custody of the Toledo Municipal Court and is scheduled to be arraigned this morning.