Capital murder charges against Jeffrey Rivera have been dismissed without prejudice, as the District Attorney's office conducts further investigation into the 2020 death of Edward Paul Hernandez.The case stems from the discovery of Hernandez's body at Nueces County Park in April 2020. Joggers found the 64-year-old Robstown resident, who had been stabbed multiple times in the chest. His abandoned vehicle was later located several miles away at St…