plastic bags near the air b and b where carla was staying. at this point authorities are waiting on the results of an autopsy before saying for certain who that person is. but investigators have also announced that biological fluids compatible with blood were found in an apartment where carla was last seen. the 36-year-old was on her last night of a trip to costa rica to celebrate her 36th birthday. in fact, she had already checked into a flight scheduled for the following day but never got on that plane. for days carla s family has held out hope of finding her. and we spoke to her father just moments before he got on the flight to go costa rica yesterday. you cannot imagine what we are feeling. her mom is absolutely devastated. she can t speak. now, we spoke to her family members over the weekend. they tell us there have been