Lanford is indeed a fictional city. All the exterior shots are from locations in Evansville, Indiana. Technically, nowhere. Considering that Lanford is a fictitious city, it really doesn't exist. If you take the information given on the show, it could exist in a number of areas. For example, the real cities of DeKalb and Elgin are often implied to only be an hour or two drive away.
Born in Scarsdale, New York, Susan Lucci is one of the most recognized soap stars ever. She's sexy, conniving, scheming temptress who seems to have the ability to wrap men around her fingers! During her long and sensational career on All My Children, Ms. Lucci grew from a troubled teen to international beauty.
Arcadio Nerona is a member of the Byz Lats. He is the cousin of Nero Padilla. Arcadio first appears at the end of Season 5, when the Byz Lats need help dealing with a rival gang lead by Dante. They are assisted by SAMCRO as well as the Mayans. Matthew Jennings, the boy who shoots up the school using a SAMCRO KG9, was the son of Arcadio's girlfriend, Darvany Jennings. Arcadio betrays Nero by trying to help Darvany escape. Arcadio is killed by Nero with a rifle while trying to get into Gemma's car to escape with Darvany.