K-12 IMPLOSION UPDATE: How a Miami School Crime Cover-Up Policy Led to Trayvon Martin’s Death. “Both of Trayvon’s suspensions during his junior year at Krop High involved crimes that could have led to his prosecution as a juvenile offender. However, Chief Charles Hurley of the Miami-Dade School Police Department (MDSPD) in 2010 had implemented a policy that reduced the number of criiminal reports, manipulating statistics to create the appearance of a reduction in crime within the school system.”