day, so did he. i just kept eating pain killers and eating them and eating them, with the hope not to wake up. reporter: but you woke up. i woke up the next day. reporter: he was homeless, but a farming family let him live and build on their land. his castle became his salvation. building this has been a big coping mechanism for myself. in the meantime,is, it is creating things for other people. reporter: each week, local residents and other troubled veterans visit, inspired by the 42-year-old. his charity, endex, offers fitness sessions, skills training, and counseling with therapists like gareth noble. as bad as things are, there s also a future. belief is important. reporter: it allen hopes to finish the castle s third and final floor this fall. more space for more healing. roxana saberi, cbs news, wales. o donnell: that is tonight s cbs evening news. i m norah o donnell hee in our