
Marvallous Keene was the head of a self-proclaimed Downtown Posse of juveniles and young adults in Dayton.
Working with three young co-conspirators, Keene murdered Joseph Wilkerson, 34, an acquaintance; Danita Gullette, 18, a stranger using a public telephone on the street; and
Sarah Abraham, 38, a clerk at a convenience store.
When he feared they would snitch on him, Keene was involved in the silencing of two acquaintances who knew too much:
Wendy Cottrill, 16, and Marvin Washington, 18. Washington was shot by co-conspirator DeMarcus Smith. Keene’s girlfriend, Laura Taylor, killed a sixth victim, Richmond Maddox, 19. The crimes spanned Dec. 24-26, 1992 and were known as the "Christmas Killings."......
http://www.clarkprosecutor.org/html/death/US/keene1171.htm