>> the 19-year-old son was attempting to forge his own career and had recently behe gun singing with the tommy dorsey orchestra. >> he sang all of his dad's songs. >> john foss played trumpet in the orchestra. fox files tracked him down to his home in maine. >> he just wanted to be like him. >> but what made the younger sinatra such an appealing at&t target for keenan? >> because he was slight of build so if he tried to run or something we could contain him without hurting him. and then i -- his father was well known for being a tough guy and hanging out with the mob. and thought that he could handle the stress. so i started writing a business plan for this affair and i called it the plan of operation just like i would if i was doing a real estate deal. >> his new you plan of operation would require some seed money but keenan was broke as a result of a car accident. >> disabled me pretty