ESPECIALLY ARE PROBABLY HERE AND MAY HAVE WITNESSED THE SITUATION OCCUR. >> POLICE ARE INVESTIGATING WHAT MAY HAVE CAUSED THE DRIVER TO CAREEN INTO THIS BUS STOP WITHOUT ANY SIGNS OF BREAKING. DA LIN SPOKE TO WITNESSES AND HAS HIS REPORT. >> Reporter: POLICE CURATOR LEO THE SCENE AROUND 7:00 P.M. THE CRASH HAPPENED HERE AND INVESTIGATIVE SAY THE VICTIMS WERE WAITING FOR A BUS AT THE BUS SHELTER . THIS IS WHAT IS LEFT OF IT. TWISTED METAL AND SHATTERED GLASS. A HORRIFIC CRASH KILLING A MAN AND A TODDLER. >> WHILE. >> Reporter: WITNESSES SAY THEY WERE FATHER AND SON BUT INVESTIGATORS HAVE NOT CONFIRMED THE RELATIONSHIP. >> WE RAN OVER TO SEE AND THERE WERE BODIES EVERYWHERE. >> Reporter: AUTHORITIES SAY SHORTLY AFTER 12:00 P.M. ON SATURDAY , THIS WHITE MERCEDES SUV PLOWED INTO THE BUS SHELTER AND HIT FOUR PEOPLE. THE IMPACT SENT BODIES FLYING. WITNESSES FOUND A TODDLER ABOUT 20 TO 30 FEET AWAY. THE MAN LANDED ABOUT 40 FEET AWAY FROM THE SHELTER. >> HE WAS LAYING THERE IN HIS ARM WAS KIND OF TWISTED BACKWARDS AND HIS FACE WAS SPLIT OPEN. THERE WAS A POOL OF BLOOD AROUND HIS HEAD. IT WAS PRETTY SURREAL. >> Reporter: PARAMEDICS RUSHED A WOMAN AND THE BABY TO THE HOSPITAL. THIS IS WHAT IS LEFT OF THE BABIES STROLLER. >> I SAW A WOMAN LAYING THERE AND THEY WERE TRYING TO RESUSCITATE HER AND SOMEONE SAID THERE WAS ALSO A BABY AND THEN I SAW THE OFFICER CARRYING A TWO-MONTH-OLD , AT LEAST TWO MONTHS, IT LOOKS LIKE IT WAS BARELY BREATHING. AND IT HAD BLOOD COMING OUT OF HIS HEAD. >> Reporter: TOOK THE FEMALE DRIVER TO THE HOSPITAL. POLICE ARE INVESTIGATING AND ARE NOT READY TO RELEASE A MOTIVE. THEY WOULD NOT CONFIRM WHAT WITNESSES ARE SAYING, WHICH IS THE ELDERLY DRIVER HAD A HEART ATTACK OR CARDIAC ARREST . >> THEY HAD TO HAVE THEIR FOOT ON THE GAS , LIKE FOR YOU. >> Reporter: THIS WITNESS SAID NO BREAKING AND NO SKIDMARKS ON THE ROAD . SHE WAS CLEANING IN HER LIVING ROOM. >> I COULD HEAR SOMETHING COMING AND I LOOKED OUT THE WINDOW AND I SAW THIS WHITE CAR GOING REALLY FAST. AND IT WAS ON THE WRONG SIDE OF THE ROAD AND IT WAS MOVING CLOSER AND CLOSER TO THE CURB. AND IT -- I DON'T KNOW HOW FAST IT WAS GOING BUT TO ME IT FELT LIKE 50 MILES AN HOUR, SOMETHING LIKE THAT. WAY FASTER THAN WAS SUPPOSED TO BE GOING. I SAW THE CAR SMACK INTO THE POLE AT THE BUS STOP DOWN AT THE END OF THE CORNER. >> Reporter: WITNESSES ESTIMATE THE SUV WAS GOING 50 TO 70 MILES PER HOUR. SHE SAID HER HEART SANK BECAUSE THERE WERE A LOT OF PEOPLE ON THE STREET CELEBRATING ST. PATRICK'S DAY. >> I WAS STANDING HERE AND I CANNOT BELIEVE WHAT I HAD SEEN OUTSIDE MY OWN HOUSE. >> Reporter: AUTHORITIES SAY THERE WERE A LOT OF WITNESSES BECAUSE THE BUS STOP IS LOCATED NEAR THE WEST PORTAL MUNI STATION. A BUS DRIVER ALSO SAW THE CRASH. DRIVERS HONK REPEATEDLY TO ALERT PEDESTRIANS ABOUT THE FAST-MOVING SUV. >> BEFORE THE CRASH I HEARD HONKING. >> Reporter: INSTEAD OF CELEBRATING A JOYOUS HOLIDAY, SHE AND OTHERS ARE NOW PRAYING FOR THE VICTIMS AND THEIR FAMILIES. >> I AM A THERAPIST, YOU KNOW. A MENTAL HEALTH THERAPIST. IDEA WITH OTHER PEOPLE'S TRAUMAS ALL THE TIME. HERE I AM , HAVING MY OWN TRAUMA RIGHT IN MY OWN ROOM. >> Reporter: WITNESSES BELIEVE THE
