According the FBI interviews that were posted on ADN (now gone), he drove up to his place in NY to check it out, then traveled to Vermont. He hadn't decided if he "was going to do anything there, yet" and was open to other locations. He got a fishing license and fished for a while and dug up the cache (I strongly believe some of them had trophies), he then "went out looking for someone". He went back to the hotel room and put the guns together and prepared to "take someone" He first decided to take someone from an apartment parking lot and hid and waiting in the wooded area of the complex. He was looking for a male, alone, with a generic car, with which he planned to rob multiple banks. It was raining that night, and as the potential victim got out the car, he ran, and IK missed him. So, he went back to the hotel and decided to "take" a couple. That's when he went walking, from the hotel, to look for a suitable house. According to the FBI timeline, he killed Bill and Lorraine on June 8, 2011, but his hotel reservation was for June 9th, 2011.