days before her ex- boyfriend' s suspected trial, the mother of a missing jacksonville toddler, londsey barton, took the stand against reuben ebron, the prime suspect in the case. scott jons tells us more about the key testimony. >> reporter: lana barton takes the stand and what she talks about most was drugs. in fact it took quite awhile to get her and ebron' s slang down everything from loud, meaning marijuana, m' s for morphine. dubbed means $20 worth of cocaine and even more. >> during that time, were you aware of the defendant still continuing to be what you refer to as - - >> yes. >> and can you tell us about the problems? >> um, yes. >> okay. cocaine? >> yeah. >> vicodin? >> yes. >> morphine? >> yes. >> any others? >> (inaudible) >> i' m sorry. hallucinogenics? >> yeah. >> and that relates to the attempt to convict of child neglect because bart onds the drug deals would often happen around her children. >> as it relates to this activity, did the defendant have to maintain a supply of >> yes. >> where did he keep that supply? >> nightstand. >> nightstand in your shared residence? >> yes.