My son filed taxes last year and this year. He di not file taxes in 2003-2007 due to being in and out of jail/prison. He did work some each of those years. Due to his incarceration his w-2 and stubs and all personal papers were thrown out by landlord when he went to prison. How can he go about filing for those past years. Companies no longer exist and he doesn't remember all of them anyway?

