![TEMPE, AZ - OCTOBER 28: Jack Jones (25) of the USC Trojans during a college football game between the USC Trojans and the ASU Sun Devils on OCTOBER 28, 2017 at the TEMPE, AZ - OCTOBER 28: Jack Jones (25) of the USC Trojans during a college football game between the USC Trojans and the ASU Sun Devils on OCTOBER 28, 2017 at the](https://c8.alamy.com/comp/KFR115/tempe-az-october-28-jack-jones-25-of-the-usc-trojans-during-a-college-KFR115.jpg)
TEMPE, AZ - OCTOBER 28: Jack Jones (25) of the USC Trojans during a college football game between the USC Trojans and the ASU Sun Devils on OCTOBER 28, 2017 at the
![Jack Jones left a letter behind before he was executed. Now, we know he's a serial killer. | thv11.com Jack Jones left a letter behind before he was executed. Now, we know he's a serial killer. | thv11.com](https://media.thv11.com/assets/KTHV/images/a981575c-2a21-4281-9136-82c8eff89a66/a981575c-2a21-4281-9136-82c8eff89a66_1140x641.png)
Jack Jones left a letter behind before he was executed. Now, we know he's a serial killer. | thv11.com
![October 21, 2017: USC defensive back Jack Jones (25) during NCAA football game action between the USC Trojans and the Notre Dame Fighting Irish at Notre Dame Stadium in South Bend, Indiana. October 21, 2017: USC defensive back Jack Jones (25) during NCAA football game action between the USC Trojans and the Notre Dame Fighting Irish at Notre Dame Stadium in South Bend, Indiana.](https://c8.alamy.com/comp/KEW569/october-21-2017-usc-defensive-back-jack-jones-25-during-ncaa-football-KEW569.jpg)
October 21, 2017: USC defensive back Jack Jones (25) during NCAA football game action between the USC Trojans and the Notre Dame Fighting Irish at Notre Dame Stadium in South Bend, Indiana.
![Jack Jones left a letter behind before he was executed. Now, we know he's a serial killer. | thv11.com Jack Jones left a letter behind before he was executed. Now, we know he's a serial killer. | thv11.com](https://media.thv11.com/assets/KTHV/images/6e49d130-7340-4b4c-b8ef-16d8c30dec92/6e49d130-7340-4b4c-b8ef-16d8c30dec92_1920x1080.jpg)