In the 20 days since Trayvon Martin was killed, his parents said, their trust in the Sanford Police Department has disappeared. Tracy Martin, father of the slain teen, told reporters today he felt "betrayed" by law enforcement investigating his son's death because they have not arrested the shooter. "It's a shame that he's [Trayvon] not getting any justice. We're not, as a family, getting any closure," the elder Martin said. "I feel betrayed by the Sanford Police Department and there's no way that I can still trust them in investigating this crime."