Mr. Patterson, a formidable crime boss and devoted grandfather to Karen Aramis, a young girl battling Tetralogy of Fallot—a hereditary heart defect—orchestrates a dangerous alliance with Karen’s mother, Saranda, to secure the expertise of the enigmatic surgeon Black Jack for her life-saving treatment. His criminal influence collides with familial duty when he is gravely wounded in a shooting during the events of *Clinical Chart 7*, leading to a tense hospital confrontation. Yasuhiko Shirabyoshi, the hospital’s chief of surgery, vehemently blocks Black Jack’s involvement in the critical operation, heightening the stakes of Patterson’s survival. His narrative intertwines ruthless underworld ties with a protective bond toward Karen, though details about his past, motivations, or fate post-injury remain unexplored. No physical descriptions or broader narrative expansions beyond this arc are documented.