@69Flight
The skid marks might come from a "fight" between the autopilot being in rollout mode and the pilots trying to steer the plane manually. They might not have realised that the autopilot was still engaged when they applied asymmetric brake forces or nose wheel steering inputs.
My take on that is that it would take more than just the nosewheel steering to generate the turning moment as shown by the skid tracks. perhaps a stuck reverser.
FN