Jennifer Lueth & Diane Shawcroft Is a killer stalking the site where he dumped the bodies of two young women? Jennifer Lueth & Diane Shawcroft Who was driving the blue truck? CASE DETAILS They were found dead by two hikers In 1996, Diane Shawcroft, 20, and her best friend, Jennifer Lueth, 19, left their homes in Colorado and moved in with Dianes older sister, Kristina Frigoin, in Glendale, Arizona. After a spat with her sister, Diane left with Jennifer to go to the store. Kristina thought they would be right back: They said they were going to walk to the store to get cigarettes and a pop and that they would be back in a little while. They didnt take anything with them. And they never went anywhere without their make-up. So thats what made me think they were coming right back. Diana and Jennifer headed for the mini-mart a few blocks away. When they didnt return immediately, it wasnt cause for alarm, since the two young women were always up for adventure. Diane and Jennifer were seen at the mini-mart around 7 P.M. The cashier said the girls bought cigarettes and soda, then sat outside the store. Two hours passed. The girls were still there when the cashier saw a man pull up in a blue truck. According to Ted Symonds of the Yavapai County Sheriffs Office: They conversed for quite a while. They got into the truck. And then the truck drove off. And thats the last time anyone saw them alive. Their memorial pictures were stolen Three months later, two men were hunting in a remote desert 100 miles north of Phoenix when they came upon two bodies. Diane Lynne Shawcroft lay on top of Jennifer Sue Lueth. Both girls had been murdered. Because the investigation was ongoing, police withheld the cause of death. But the location of the girls bodies offered several clues as to who the killer or killers might be. The area was extremely isolated, 16 miles from the nearest highway and accessible only by pick-up truck or four-wheel drive. Police believed the perpetrator knew the area well and frequented it often to hunt or four-wheel drive. Jennifer Lueths father, Bob Lueth, believed the killer did not act alone: Jennifer was strong girl and she was a scrapper if she needed to be. It wouldnt be easy for one person to overpower Jennifer alone, but with two of them, its just sort of inconceivable to me that one person was able to do that to two girls. Who was the man in the blue truck? The investigation centered on finding the man in the blue truck. Believing that the girls knew this man, police focused on their personal lives. While in Phoenix, Diane and Jennifer had been to many parties and nightclubs. They had met a lot of people in the short amount of time they lived in Glendale, many of them men. Jennifer Lueths mother, Debra Lueth, knew they were easy targets: I think both Jenny and Diana were very naïve and very innocent. I think like most 19 year-olds, they think theyre invincible and can just conquer the world. I think whoever got involved with them knew that, could read them like a book, and took advantage of them. There was one final strange twist to this case. The families erected a shrine where the bodies were found. Pictures of both girls were placed at the foot of two wood crosses. Police decided to occasionally survey the sight, hoping to find evidence of a visit from the killer. Four years later, on September 29, 2000, they found it. Both photos of the girls had been removed from their frames. Only police and the victims families knew the exact location where the girls bodies had been found. Dianes father: Nothing else seemed to be disturbed and it definitely raised questions as to who would want the pictures, who would go to that much effort to go back in as far as it is, get the pictures, and take them. Hard to even imagine who it would be, or why they would do it, unless it was the perpetrator. No evidence that might identify the murderer has ever been found. Authorities would like to question the man in the blue pick up who was the last person seen with the girls.