Roger Kibbe

Roger Reece Kibbe (May 21, 1939 – February 28, 2021) was an American serial killer and rapist. He was known as the "I-5 Strangler". 
Kibbe found all but one of his victims on the freeways around Sacramento, California. On May 10, 1991, Kibbe was sentenced to 25 years to life imprisonment for the murder of Darcie Frackenpohl and, at least initially, to serve his time at Pleasant Valley State Prison.
Kibbe was murdered by an inmate on February 28, 2021 in Mule Creek State Prison in Ione, California at the age of 81. His death is being investigated as a homicide.