But just how much of a piece of trash was Cha Ji-chul that everyone suspected him during Park Chung-hee's assassination? lol

‌Vice Commander Ryu Byung-hyun
Told Wickham that Cha Ji-chul committed the assassination
Minister of Justice Kim Chi-yeol
Said that the guy was so arrogant he thought he could get away with it
Chun Doo-hwan
Upon hearing the news of the death, he was about to order an arrest, believing it was definitely Cha Ji-chul's doing, but then heard testimonies from Kim Kye-won and Jeong Seung-hwa, who had contact with the situation
Arrested Kim Jae-gyu
There are more instances, but the funny thing is that everyone said Kim Jae-gyu was a gentleman and would never do such a thing, and they all assumed Cha Ji-chul was the one who caused the trouble...
In reality, if they had only dealt with Kim Kye-won, Shin Jae-soon, and Shim Soo-bong, it would have helped buy time and seize control of the political situation.