[Steve Van Doorn]

"It could have been a port engine reverse pitch runaway prop failure and with his weight and trim could not control the roll."

that makes sense.

Here is an example of reverse pitch:
https://www.youtube.com/watch?v=Q3M6AZel0hk

[Mat_Helm]

There is audio without visual of the C-130 flying overhead seconds before the impact. The props don’t sound uniform. If the crew did not catch the reverse pitch soon enough the VMC roll was inevitable unless he could get the nose down to maintain control before the port side wing stall. More than one older C-130 has gone down do to reverse pitch inflight after takeoff. Most of the time if the throttle cable goes bad or the engine bell housing control valve fails they catch it on the ground during engine run up.