The public prosecutor’s office in Frankfurt an the Oder found no signs of any outside involvement in the death of Hertha Berlin president Kay Bernstein and “most likely assumes a natural death” after the preliminary result of the autopsy on the body of the former club boss. A spokeswoman told dpa on Thursday that toxicological and histological samples were still being collected, and these will take time to examine. The investigation is a standard procedure in such a case to clarify the cause of death. It’s still unclear when the results will be available, the spokeswoman said, but Bernstein’s …