Jack Neylon

Jack Neylon (ジャック・ネイロン, Jakku Neiron), whose real is name Kal Snydar (Kal Snyder (カル・スナイダー, Karu Sunaidā in the Japanese version), is a member of the Mafia. He is the holder of Sidoh's Death Note after it is given to the gang by the Japanese Task Force.

Before Mello joined, he was involved in drug trafficking and illegal weapons sales; neither charge stuck due to lack of evidence, despite four separate arrests. After Sidoh tracks down his Death Note, Jack performs the eye trade with him. Light uses the Death Note to have him mail him the address of Mello's hideout. In the anime, the eye trade and the first attempt to retrieve the Death Note were cut.