term:

Son Of Sam Law

son of sam law n

[after Son of Sam, pseudonym of serial killer David Berkowitz, whose profits from the sale of his story a 1977 New York statute attempted to divert to his victims]
: a law preventing criminals from profiting from media depictions (as in books or films) of their crimes

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.