Discription of Events: DROVE IN FAST LANE SAME SPEED AS OTHERS. WHEN RUGHT LANE DRIVERS NOTICED THEY SPED UP AND MADE GAP TO PASS AROUND. THE BAD DRIVER SPED UP AND WOULD NOT ANYONE PASS AND WAS HITTING BRAKE. THE DRIVERS ON LEFT ALL SLOWED DOWN TO LET THIS CHEV MALIBU WITH SUPER DARK TINT GO ON HIS WAY. BUT WHEN I AND ANOTHER DRIVER CONTINUED HE GOT RIGHT ON MY TAIL AND AS TAILGATTING AND MAKING HAND GESTURES OF A PISTOL ALL THE WHILE STILL TALKING ON PHONE. WE PULLED OFF TO ALTERNATE ROAD AND HE DID NOT FOLLOW