Martin would be alive if he stayed in his vehicle , police said . Special prosecutor Angela Corey announced he 'd been charged on April 11 , weeks after Sanford police initially declined to do so . Trayvon Martin was pronounced dead 3 minutes after firefighters and EMS arrived . Evidence of THC , an ingredient in marijuana , was found in Martin 's blood , tests show . Police found forehead ` ` abrasions '' and ` ` bleeding '' from Zimmerman 's nose .
Martin would be alive if he stayed in his vehicle , police said . Trayvon Martin was pronounced dead 3 minutes after firefighters and EMS arrived . Evidence of THC , an ingredient in marijuana , was found in Martin 's blood , tests show . Police found forehead ` ` abrasions '' and ` ` bleeding '' from Zimmerman 's nose .