they take on famed florida attorney barry cohen. >> they're doing a half-assed job of trying to find sabrina. >> reporter: i spoke to him in 2008. why do they need a lawyer? >> they were being accused of a crime they didn't chit. anybody that's accuse of a crime they didn't commit sure needs a lawyer pretty badly. >> reporter: today, cohen is waging a more personal battle, fighting cancer. >> we're at the cul de sac where the aisenbergs live. >> reporter: so we caught up with his old team who helped defend the aisenbergs, lawyers todd foster and steve romine and private investigator kevin kalwary. did you all make a conscious decision to cut them off from police and cooperation? >> yes. we sensed that the sheriff's office wasn't as interested in involving the case as they were making a case against the aisenbergs. >> law enforcement will look at that and say, if you are not being guilty, just being honest is going to help the cops find your child. >> reporter: in the days following sabrina's s disappearance, the police mount a massive search. in the ground, in the air, surrounding th