Read: George Zimmerman sues Trayvon Martin's family for $100M

George Zimmerman filed a $100 million lawsuit Wednesday against the family of Trayvon Martin, the unarmed black 17-year-old he fatally shot in 2012 in Miami Gardens, Florida, the Miami Herald first reported.

Why it matters: The neighborhood watch volunteer was acquitted of homicide charges in the high-profile criminal case, which inspired the Black Lives Matter movement in which Martin's parents have been leading voices. Now, Zimmerman is suing them, a law enforcement agency and a publishing firm for malicious prosecution and defamation.