BOISE – The day Edgar Steele was arrested for an alleged murder plot against his wife and mother-in-law, investigators first told him his wife had died in a car crash to see if he would go along with alibis he’d mentioned in a secretly recorded conversation with an FBI informant. The 65-year-old North Idaho lawyer apparently took the bait. FBI Special Agent Mike Sotka testified Wednesday that Steele told agents he suspected his wife, Cyndi Steele, was having an affair with handyman Larry Fairfax, whom prosecutors allege Steele hired to commit the killings. That’s what Steele, in taped conversation, essentially warned he would say if authorities ever connected Fairfax to the deaths.