Rescuers clear a rear-end collision involving two semis on northbound I-75, south of State Rt. 795, that tied up traffic for hours last night. The driver of the rear truck, Timothy Biddle of Tennessee, was taken to Medical College of Ohio Hospitals. His condition was not available. The driver of the first truck, Inderpereth Johel, was not hurt. The trucks were in the center lane when the first slowed and was struck by the second about 6:10 p.m.