 DRUG MAKES A CLOT DISSOLVE MORE EFFECTIVELY AND LOWERS THE RISK OF DAMAGE TO THE BRAIN. IT COULD ULTIMATELY BE A GAME CHANGER. AND HE'S HOPEFUL THE TREATMENT WILL EVENTUALLY BE USED AROUND THE WORLD. SCOTT MAYMOND FOR CBS NEWS CANBERRA, AUSTRALIA. MINNESOTA VIKINGS ROOKIE KYRIE JACKSON DIED EARLY SATURDAY MORNING IN A CAR ACCIDENT IN MARYLAND. THE 24-YEAR-OLD WAS ONE OF THREE PEOPLE WHO DIED IN A THREE CAR CRASH IN PRINCE GEORGE'S COUNTY. HEAD COACH KEVIN O'CONNELL SAID HE WAS CRUSHED BY THE NEWS. MATT PIPER, CBS NEWS.