over deportation is palpable. these teen girls left haiti with their family for south america when they were just babies. so you know no one in haiti. if they deport you, you ll be on the streets? si. reporter: officials say the number of migrants still at that bridge camp has dropped dramatically, from a height of about 15,000 to now just over 5,000. norah. o donnell: manny bojorquez, thank you. well, tonight, the search for gabby petito s boyfriend is still focused on a vast nature preserve in florida. a preliminary autopsy found her death to be a homicide, and her boyfriend hasn t been seen in more than a week.r boyfriend hasn t been seen in cbs jericka duncan reports, the case has brought new attention to the search for tens of thousands of other missing people. reporter: today, veteran dive teams were called in to search underatern th 24crrese th r and boats, in addition to helicopters and drones. still, no sign of 23-year-old