got bless you, paul colby, thank you, pal. became a professional performer. >> diamond broke through in 1966, with cherry, cherry. ♪ ♪ you got the way to move knee ♪ >> after that the hits came like rain. ♪ then i saw her face now i'm a believer ♪ many of them we haven't stopped singing. ♪ sweet caroline good times never seemed so good ♪ ♪ so good >> he wrote sweet caroline in just one hour useding a chord he had never played before. ♪ hands for touching hands that chord ♪ >> an a 6th. ♪ ♪ ha hand -- how do i play it? touching hands ♪ >> there is just something about that chord that sweeps you along. >> sir elton's career got swept along as young reginald dwight he answered the ad, seeking song writers. >> when i look back on my little shy self. i can't belief i had the balls to do it. but i did. they paired him with the lyricist, bernie taltman. they clicked immediately. >> and you can tell everybody. >> and became one of the most successful songwriting teams in history. ♪ ♪ >> when he brings you a leering do you ask him to e

colby. >> welcome to my home. >> he tells me this true detective story begins in 1960, when marty's great-uncle, mike malone, a longtime irs employee, passes away. marty's grandmother, molly, heads to st. paulminnesota, to collect her brother's personal effects. it's there she makes a bizarre find under the pillow -- a gun. >> no serial numbers on the gun. they were etched out. >> why would he, as a government employee, have a gun with no serial number? >> that's a good question. i don't know. >> molly also inherits a pair of handcuffs and several boxes of official-looking papers. it all winds up in the crawlspace of the family home in new jersey. >> and no one really took it upon themselves to dig into these. >> when molly dies, in 1977, marty's mother, dolly, inherits the boxes, and they continue to collect dust in an attic. >> my parents's generation -- they didn't do anything with it either. >> in the mid-1980s, the inheritance moves to the attic of marty's sister, eileen. she and marty become curious about those documents. >> i said, "you know, for the sake of completeness, maybe, we'll take a look at things." i didn't know what they were or what they were about, 'cause i was young whe