Wholesaling: owner is in jail?

[Jesse Davis]

I was driving for dollars and happened upon this house that was obviously vacant in a great neighborhood. I did my research and found out the owner was arrested 5/13/2020 for arson. Yes, you guessed it he was accused of burning his house down with his wife and teen son in the house. I cannot find the wife’s contact info but she is on record as part owner. Im guessing I need to skip trace the wife to gain access to the house. I’m not sure if the property is a crime scene still under investigation. Any advice would be great!

Do I need both husband and wife’s signatures on the contract?

Is it possible to mail the contract to the jail for him to sign?

New to the game, thanks