FULL TESTIMONY: Homicide detectives says "catfish" theory pushed in au pair murder case

Homicide Detective Leah Smith is on the stand and says she pushed back against the catfishing theory by department leadership as coming before the evidence. Smith says she was told "there are two theories and you need to get behind the right one." She says it became clear the catfishing theory was the one department supervisors wanted detectives to pursue. But Smith also says Brendan Banfield's arrest wasn't based on Juliana Magalhães' testimony, but on evidence.