A one-eye drug dealer told a jury Aaron Hernandez killed two men, and made a stunning admission

Absolutely chilling.

The state's key witness against Aaron Hernandez in his double-murder trial said the former college and pro football star had a simple message before he opened fire on a car carrying two men:

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And the witness, Alexander Bradley, said Hernandez gave him a frightening warning:

But not only that, Bradley made a stunning admission - he wanted Hernandez's "life" after he says Hernandez shot him in the face and left him partially blind.

Bradley, a convicted drug dealer serving five years in prison, was granted immunity to testify against Hernandez.  Hernandez has been charged with killing two men, Daniel de Abreu and Safiro Furtado, in a drive-by shooting following an incident a Boston nightclub in 2012. Bradley says he was with Hernandez that fateful night.

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Hernandez, who is already serving a life sentence for killing his friend Odin Lloyd, has pleaded not guilty to the latest charges.

Bradley gave extensive testimony Monday, and several media outlets - including WBZ-TV, the CBS affiliate in Boston - was there to hear it live. Based on the WBZ report, Bradley testified that Hernandez shot de Abreu and Furtado five times after de Abreu spilled a drink on Hernandez at a Boston club.

Bradley testified that Hernandez became increasingly paranoid after the incident, and shot him in the face because he knew too much about the double shooting. Bradley also testified he didn't want to cooperate with police and cited a chilling reason:

Bradley is now blind on one eye and wears a prosthetics device.

Hernandez's defense team has ripped Bradley's immunity as "a deal with the devil," and claim that Bradley is the one who  pulled the trigger.