Here is a recent summary of statins and PD Medscape: Medscape Access.

I don't live with PD but if I did I would need a lot of convincing about them in that context.

As an aside, a recent Cochrane systemic review of statins in the context of reducing the risk of fatal or non-fatal cardio-vascular events showed that the evidence is very weak (no more than a 1.3% increased risk for people on placebo vs a statin)

I summarised this here Statins.