OXFORD, Miss. (AP) – The stories from family and acquaintances of a Mississippi man charged with sending ricin-laced letters to the president and other officials describe a caring father and enthusiastic musician who struggled with mental illness and pursued a conspiracy theory to its farthest reaches.

Paul Kevin Curtis, 45, wrote numerous Web posts over the past several years describing the event he said "changed my life forever": the chance discovery of body parts and organs wrapped in plastic in small refrigerator at a hospital where he worked as a janitor more than a decade ago.