An off-duty Polk County Fire Rescue firefighter and paramedic was killed in a crash Saturday morning on Interstate 4. Brian Herr, 41, was heading west on I-4 in Davenport when he somehow crashed his car, according to Polk County Fire Rescue. It's not yet known what led up to the crash. It was reported before 6 a.m. near the exit to State Road 557. More: https://www.wtsp.com/article/traffic/deadly-interstate-4-crash-polk-county/67-a38137f7-70f7-48cc-a9e0-56846bf223b0