Police are investigating the possibility that Paul Walker was engaged in a street race with another car at the time of the crash that took his life Saturday.
According to TMZ, authorities have received tips that Walker and the man driving the Porsche, Roger Rodas, had been racing prior to the crash.
Racing at high speeds, a la the Fast & Furious franchise that made the actor a star, may have contributed to the wreck in which Paul Walker died.
Police say speed was a factor in the fatal accident, and the area where the crash occurred has a history of being a popular street racing location.
Cops are on the hunt for video and/or witnesses that could prove another car was involved, but they don't have that yet. The car could've also malfunctioned.
Mechanical failure (specifically a steering fluid leak) may have caused the explosion, according to the shop where the Porsche was stored and maintained.
Here's the latest video of the crash, as seen on a nearby security camera:
Always Evolving, a shop co-owned by Walker and Rodas, says there is evidence of a fluid burst and subsequent fluid trail before the skid marks at the scene.
The AE sources point to the fact there is a noticeable absence of skid marks until just before the collision that left the two occupants unrecognizable.
Their theory is that if Roger had lost control of the sports car, the skid marks would show swerving, but instead the marks were in a straight line.
They feel this cements the theory the driver didn't have control.
Also suspicious, they say, is that the fire spread so quickly in the front of the car, which suggests a fluid leak of some sort (the engine is in the rear).
Either way, police think a street race may have been involved. Whether that's true, or it's related to any mechanical issue that felled the duo, is unclear.
The investigation into the crash that killed Walker is ongoing.
After the accident, one of Paul's friends described the scene. It doesn't answer the above questions, but does offer a first-hand witness account: