After The Celebration of The Destruction of The Second Death Star, Luke was wondering how Jay lost his arm. He found Jay outside of the village and caught up to him.
Luke: Master Lyon...
Jay stopped and turned to Luke. He saw and concern look on his face. Luke saw his arm and now he wants to know how did he lose it.
Luke: You never told me you lost your arm.....How did you lose it, Master
Luke's words hit Jay like a thunder bolt. He placed his hand on his prosthetic arm and turned away. Taking a deep breath, he began to tell Luke how he lost his arm.
Jay: Luke....I lost this arm two times.....The first time, I was a Padawan, just 17 years old....I was temporarily assigned to a Nautolan Jedi Master named Kit Fisto. We head to Dantooine to fought Echore Medina, who was a Sith at the time, at a base. She knocked out Master Fisto and I fought her, until she cut my arm off, just at the elbow. She told me I was fool to face me. If wa