with no motor, right? no motor. no auxiliary power, as he put it. reporter: mind you, doug was an expert skipper, said he knew how to paddle the shield. but the detectives didn t like it, this too perfect, too weird alibi. it didn t make sense to me then and it doesn t make sense to me now. reporter: so they paid a visit to the boat club were dug claim to have set sail that night. we obtained one of the record showing he had signed out for the boat. reporter: they asked another skipper, was a shield a boat that a skipper could handle alone? oh yeah, he could. that was his comment. oh yeah, you could see all this by yourself. i reporter: so that was the alibi. dogs claim that he sailed alone that night and a mark in a pencil book. he never had anyone see him
anytime he wanted one. that night, said doug, he took out a 30 foot slew, a special type of racing boat known as a shield. did you go sailing that night? i started off under the sale but i ended up coming up underpowered a battle power. there was no auxiliary power? and i got there without any wind. and then you arrived back what time? by the time i got the boat put away, it could have been 1:30, 2:00. reporter: right around the timeline was murdered. you didn t get much sleep that night? no, i was sore in my shoulders, everything, from paddling. it was quite a night. this going out by himself, with no motor, right? no motor. no auxiliary power, as he put it. reporter: mind you, doug was an expert skipper, said he knew how to paddle the shield. but the detectives didn t like