NE : Blood found in suspect 's home , police say . NEW : The developments came as authorities continued searching for Christian Aguilar , 18 , last seen September 20 . Student 's backpack found at suspect 's home , police say . Carlos Aguilar , 18 , was last seen September 20 in Gainesville , Florida . Pedro Bravo , also 18 , is charged with assault .
NE : Blood found in suspect 's home , police say . NEW : Student 's backpack found at suspect 's home , police say . Carlos Aguilar , 18 , was last seen September 20 in Gainesville , Florida . Pedro Bravo , also 18 , is charged with assault .