George Zimmerman Blasts President Obama for Fake Tears

George Zimmerman put down his guns long enough to shoot off his mouth instead at President Barack Obama ... accusing him of shedding crocodile tears over mass shootings.

Zimmerman, was leaving a shooting range near Orlando when he unloaded on a photog about what he calls Obama's phony, emotional outpouring over the Sandy Hook massacre during Tuesday's gun control news conference.

Zimmerman, the infamous shooter of Trayvon Martin, went even further with his rant -- taking issue with a bunch of things Obama said, and one thing he did NOT say.