the bond one inmate might develop with another can be the only thing that helps them survive a bleak existence behind bars. in some cases those bonds have existed their entire lives. over the years lockup crews have discovered a surprising number of family members serving time together. but few have ever had to face the difficult circumstances that confronted yvette and doris gay. >> being on death row it was like, it was like i needed to be with my sister. >> the identical twins, convicted of murder, for helping yvette's former boyfriend carry out a triple homicide were sent to the correctional institute for women. doris got a life sentence. yvette condemned to die. she told us about her first day on death row.