Causation is always a key issue in accidental death insurance claims as a recent 1st U.S. Circuit Court of Appeals decision teaches.In Arruda v. Zurich American Insurance Co., 2020 WL 880548 (1st Cir., Feb. 24), the 1st Circuit overturned a judgment in favor of the plaintiff, Denise Arruda, in relation to an accidental death insurance claim relating to the death of her husband, Joseph Arruda. The insurer maintained that Joseph’s death was caused or contributed to by Joseph’s pre-existing health conditions. The …