The fiery multi-car crash that killed four people in Thornton on Saturday was caused by a rear-end collision at a red light, police said.
A Ford SUV carrying four people was traveling northbound on Washington Street when the driver stopped at a red light at Thornton Parkway, according to a Tuesday news release from the Thornton Police Department.
Police said the driver of the second car, a Subaru sedan, was speeding down northbound Washington Street when it crashed into the back of the stopped SUV around 7:30 p.m. Saturday. The crash caused the gas tank to rupture, lighting the SUV on fire…