>> something told me they weren't going to hand steven avery $36 million for any kind of money. g to be watching him and, look what happened. >> avery ended up settling that lawsuit for $400,000 before his trial. the county did not acknowledge any wrongdoing. they used the money to hire his defense attorney is, dean strang and jerry buting. >> we knew it would be a difficult events. >> we spoke to buting in 2016. >> we had a tough defense in this case, because nobody wants to try and use a defense that the police deliberately tried to plant evidence, or framed somebody. >> it goes against society, people are there to help us, they are the police. >> right, but it's where we thought the evidence pointed. >> avery's attorneys believe the fact that officers from the county he was suing were part of the search made for a huge conflict of interest. and for a possible mischief at the crime scene. >> but i could say is from evidence i've looked, i think he was innocent, is anderson. >> preparing for trial, buting learned about a vial of avery's blood left over from his overturned rape c

goal, and that's to vacate the conviction of steven avery. >> part of zellner's great success comesis case. >> kathleen goes and interviews kevin at the jail. >> he looked completely, totally in shock, like someone who'd seen a car crash. >> i met her at the jail. i said we needed her help because, obviously, i believed in kevin's innocence, 100%. >> kevin issues a statement that says there's no way that he did this, that he was coerced into a confession. >> kevin fox, in a written statement to the media, denies killing his 3-year-old daughter. he says, i tcoeratd answer the . yellingndmi at me that i killed her. >> was there ever a quiet dark moment where you thought, is my husband capable of this? >> absolutely not. no. i know kevin way too well. i watched him be a parent to our children every day. >> the family believes 100% in kevin's innocence. >> it wasn't just the pat response that a wife gives when a husband is accused of doing something horrible. >> he knows he's innocent. i know he is innocent. >> she believed that. and she knew that. >> what was life like for you in jail?