CAPE GIRARDEAU, Mo., (KBSI) — More than 50 years after it was sealed inside the cornerstone of the former Cape Girardeau Police Department building, a time capsule was opened Friday, revealing a glimpse into the department’s history. Among the items recovered were four badges belonging to officers who were killed in the line of duty, a roster of police officers employed by the department in 1975 and a list of construction workers who helped buil…