All about Paul Walker's death

Speed, Not Mechanical Failure, to Blame in Paul Walker Crash

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As suspected, investigators have determined that speed was to blame in the crash that killed Paul Walker and his business partner, Roger Rodas.

According to the Associated Press, which was briefed on the crash investigation findings by a person who reviewed the final report, it was unsafe driving, not mechanical failure that caused the accident. The 2005 Porsche Carrera GT driven by Rodas and carrying the "Fast & Furious" actor was going between 81 mph and 94 mph when the car began to drift as it lost control coming out of a curve. The speed limit in the residential neighborhood is 45 mph.

Following the fatal incident on Nov. 30, Porsche sent engineers to California to review the rare car's wreckage. Reportedly, they found no problems after electrical systems, brakes, throttle, fuel system, steering, suspension and other systems were analyzed. Walker, 40, was about halfway done shooting “Fast & Furious 7″ when the tragedy occurred.

Yahoo Movies caught up with Dwayne "The Rock" Johnson at CinemaCon in Las Vegas on Tuesday, who spoke about honoring Walker's character, Brian O'Conner, in the latest installment of Universal's franchise.

"It's very important for everybody involved, of course," Johnson revealed. "It's not easy, and it's a challenge when you have something like this — a beloved person. Paul, as you guys know, he was truly one of the good guys — a great dude, who didn't take himself seriously, loved what he did, understood the business of the business. You got the real deal, genuine guy when you got him. So it's important for everybody to creatively honor him in the best way that we possibly can." Johnson added that his heart ached most for Walker's 15-year-old daughter, Meadow.

"The biggest pain I felt was for his family, his daughter," Johnson explained. "We had talked about that a multitude of times — how cool it is to be a dad. There's that really special bond between a dad and his little girl. She'll always be his little girl. … So my biggest pain was for his family and for his daughter, mom, and dad."

To make a tough situation even more difficult, Meadow is currently at the center of a guardianship battle.
Paul's mother, Cheryl Ann Walker, filed a legal petition to be appointed custodian of her granddaughter. Cheryl Ann, a registered nurse, claims that Meadow's mother, Rebecca McBrain, "has a drinking problem."

McBrain is expected to challenge for custody.