. >> finally, an inmate tells his story about the night that ended the lives of joe and gilbert flores. >> it sounded like a machine gun. there were so many shots. >> now comes the part which i really don't want anybody to know. >> the judge told me that i had become such a monster that i had to be put away. ♪ >> california state prison solano is a level 3 security facility with over 6,000 inmates, and each one has a secret. admitting your crime can get you killed in prison. but for six months, our cameras will follow as five inmates do the unthinkable. tell the truth about their crimes. this is eddie haro's story. >> my name is edward haro. i'm serving a sentence of 31 to life for two counts of kidnap and two counts of second degree murder. >> 21 years ago on a dark, dirt road, two men were murdered. and eddie haro was there. >> it's like i allowed this to happen. >> he was convicted of the kidnap and murder of his two friends, joe and gilbert flores. he has rarely spoken about the crime since that night. >> i turned 30 in prison, i turned 40 in prison, and i just turned 50 in prison.