Original sentence: The first piece of evidence that seemed to indicate a killer with a certain motive was a set of receipts of the food, showing that the killer took multiple trips to the store
Edited sentence: The first piece of evidence that seemed to indicate a killer with a certain motive was a set of receipts of the food, showing that the killer made multiple trips to the store - his frequent absences and the sheer amount of time spent torturing his captive meant a heightened risk of discovery, indicating that the killer was not simply motivated by sadism or vengeance