The Witness (El Testigo)

Which witness is correct?

• Fred Romel - "It was a horrible accident. The blue car was turning right at the intersection and suddenly the green car drove quickly through the intersection. He didn't even stop at the stop sign."
• Tracy Evans - "The blue car was driving through the intersection when the green car suddenly turned left in front of the blue car, cutting him off. That's when they crashed."
• Paul Thomas - "The blue car didn't stop at the stop sign. He drove right into the intersection and crashed into the green car which was driving straight through."
• Ellen Fitzgerald - "I saw everything. The green car was driving behind the blue car. The blue car suddenly stopped at the stop sign and the green car hit him."