Dams' neighbors the Saturday morning of Danielle's disappearance, and discovered that one neighbor, David Westerfield, was not at home. Westerfield (born February 25, 1952), 49 years old at the time, was self-employed as an engineer and held several patents for medical devices. He graduated from James Madison High School. He had no criminal record at the time, and was a divorced father of two college students. He lived two houses away from the van Dams, and owned a luxury motor home. About three days before Danielle's disappearance, Danielle and Brenda had sold Girl Scout cookies to Westerfield, who invited them into his home. Brenda asked to see his kitchen because she had noticed it was being remodeled when they had sold cookies to him the year before. On Saturday morning, Westerfield fetched his motor home from another part of town, stocked it with supplies, and left home at 9:50, minutes after Brenda called 911 to report Danielle missing. Westerfield later told police that he had driven around the desert and the beach in his motor home, and had stayed at a beach campground: this was later confirmed by witnesses, cell phone records, gas receipts and credit card records. Westerfield said he had intended to go to the desert, but realized he had forgotten his wallet, so instead he drove to the campground at Silver Strand State Beach. He paid in advance for a two-night stay. However, he decided the weather was too cold, so returned home to look for his wallet, after which he went to the desert. A witness at Silver Strand later testified he saw Westerfield pull out his wallet while at the campground. He drove to the desert, where he got stuck in the sand on Sunday morning about a quarter mile off the road and needed help from a tow truck to get free. On his way home on Monday morning, a sleepy-looking and bare-footed Westerfield stopped at his regular dry cleaners and dropped off two comforters, two pillow covers, and a jacket that would later yield traces of Danielle's blood. When law enforcement first interviewed Westerfield, he did not mention going to the dry cleaners, although he detailed almost every other stop on his outing. Law enforcement placed Westerfield under 24-hour surveillance on February 4, noting that he had given his RV a cleaning when he returned from his trip, although he maintained it was