During the trial prosecutors said the three murder victims, each single and unemployed with few family ties, had been lured with offers of farmhand jobs.
During the trial, prosecutors had argued the three murder victims - each single and out-of-work, with few family ties - had been lured with offers of farmhand jobs.
Mr Davis said he responded to a Craigslist ad to work as a farmhand, and met Rafferty and a man who called himself "Jack" for breakfast before driving to an isolated farm.
Wearing a red and white baseball cap and a short-sleeved plaid shirt, Mueller and a farmhand usher a new group of cows eight at a time into the small barn that holds his milking machines.