Published: Jan 23, 2013 10:59 PM EST

COLLIER COUNTY, Fla.- Investigators say they received nine new tips in two Collier County cold cases.

Terrance Williams and Felipe Santos vanished one month apart, nearly a decade ago. On Monday, a national TV show called, "Find our Missing" featured their stories. Weeks ago, actor and director Tyler Perry offered a $100,000 reward for anyone with information leading to an arrest.