Link to our lab as a pdf - College of Science - Marshall University

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The Investigation possibly armed and dangerous in the warrant posted for their arrest. Two days ago, an abandoned blue Ford Ranger with out-of-state plates was found on a strip of New Mexico highway. The pickup was dirty and dusty, but investigators noticed a Tumbling Water Land Development Co. sign on the back tailgate. Forced entry was apparent. Upon access to the truck, investigators discovered several pieces of trace evidence and sent it to Highland Park for analysis. At the Scene The forest gets thicker and buildings less frequent the farther you drive along old Route 52. You see the sign for Tumbling Water Land Development Company and make the turn onto the gravel road cutting into the forest. Before long you see the other police vehicles, and Detective Murray is motioning you over to the side of the road. A small cabin, now surrounded by police tape is sheltered by trees here, and you see several other similar cabins further down the road. You hear the Blackrock River roaring not too far off behind the cabin. As you and your partner get out of the car, the hot July sun hits you. Detective Murray comes up, sweating in the heat. “Hey folks, welcome to the scene. Two bodies inside, both pretty bad off, and who knows how long they’ve been there. A Girl Scout found them about an hour and a half ago on a hiking trip. Gave her quite a fright; her troop leaders weren’t much better off. Anyway, we’ve got a problem. We’ve ID’d the woman inside as Louise Mondelo, the same woman identified last weekend in that car that ran off Backbone Mountain during the storm. Neither body’s in good shape and nothing positive can be made until we get DNA, but we need to figure this one out.” The smell of human decay assaults your nose as you go inside. Overturned chairs and tables announce the struggle that took place here. The smaller body, dressed in a blouse and jeans, lays near the phone that now dangles from its line. The larger corpse is dressed in a man’s polo shirt and slacks and lays in a corner to the left of a door; blood covers the walls and floor around him. Another investigator is already collecting maggots from the corpses to help establish a time of death. As you process the scene, you find flesh scraped on the stone of the fireplace, and you collect blood and skin from a piece of bloody firewood laying near the woman’s body. The wounds on her head seem consistent with the firewood, but nothing is certain with her in this state of decay. Outside of the cabin, you notice a set of tire tracks deeply rutted in the mud and grass. None of the investigators had driven near that area, so you take plaster molds and pictures to preserve evidence. The Mystery of Lyle and Louise 21
The Evidence Evidence was collected from the remains of the victims of the car accident: • Adult Woman • Female Child • Male Child Additional evidence was also collected from the victims at the fishing cabin, as well as blood evidence found at the scene: • Adult Male • Adult Woman • Blood on Firewood • Skin Scrapings on Fireplace A DNA sample was collected from John Wayne Gretzky, a suspect in the cabin murders. Additional known samples were collected from the Mondelo home. In all, known samples include: • Lyle Mondelo • Louise Mondelo • Wally Mondelo • Jan Mondelo • John Wayne Gretzky 22 The Mystery of Lyle and Louise
Page 1 and 2: An Identity Crisis A Lab on DNA Typ
Page 3 and 4: Table of Contents Introduction to I
Page 5 and 6: Introduction to Identity Crisis WEL
Page 7 and 8: These notes are provided to assist
Page 9 and 10: Glossary Agarose: A molecule purifi
Page 11 and 12: PCR Technology PCR is the cornersto
Page 13 and 14: Forensic DNA Technology stabilizes
Page 15 and 16: 18 The Mystery of Lyle and Louise
Page 17: The Investigation this time, invest
Page 21 and 22: Pre-Lab Questions DNA Background 1.
Page 23 and 24: Lab Procedure 6. 7. 8. 9. to go dow
Page 25 and 26: Post-Lab Questions Short Answer 1.
Page 27: Mock Trial documents prepared by th

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