Ennis William Cosby (April 15, 1969 – January 16, 1997) was the son of comedian-actor Bill Cosby and Camille Cosby. He was murdered in 1997 on the shoulder of Los Angeles' 405 Freeway by Mikhail Markhasev.
Ennis' father Bill Cosby mined family life for much of his material, but kept the family itself quite private. Thus much of what is known of Ennis's early life is seen through the filter of his father's comedy sketches and TV shows.
Several events in the life of Ennis Cosby were intentionally mirrored by the events in the life of his father's fictional son Theo Huxtable on NBC's The Cosby Show (1984-1992). Theo was portrayed by Malcolm-Jamal Warner. Both Ennis and Theo had four sisters: two older, two younger. Both had academic problems in middle school and high school. Both were diagnosed with dyslexia and excelled academically in college. And both sought master's degrees in education from elite colleges in New York City: Ennis at Columbia University, Theo at New York University.