for contraband, please. >> we have to break this whole mattress down. regulations require that security check mattresses when they're brought in like this. lieutenant? this was the area that was concerned, right? >> yes. >> roca moreno is a known member of a puerto rican prison gang called the nietas. he joined during an earlier prison sentence he served in puerto rico, but he insists the nietas are not a gang. but a fellowship of sorts. >> it was a word from the warriors. they used to send it to the gods three times. that's why it means the birth of a new warrior. >> roca moreno says puerto rico