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After months of suspecting that her student teacher was helping his roommate hide morphine pills in her classroom, Suzie finally found Tony's stash hidden in a drawer. Suzie, convinced that Tony was going to ruin Luca's life, threatened to report them both. When Luca told her that he was concerned for his own safety, she decided that there was only one way to fix the situation. She managed to talk Luca into killing Tony. Tony left a note for Suzie using a pen he found in her classroom saying he would come to retrieve the pills before 10 that night, and Suzie and Luca knew that would be the best time to do it, when no one was around. Luca told Tony he would come to unlock the room for him, but Tony arrived earlier than Luca expected; the room was locked, and he was afraid of being found out, especially when the custodian saw him there. He got cold feet and left. Carrying Suzie's 9mm gun that she had lent to him, Luca went to make the copies first, to give him a reason for being in the room. Under the guise of dropping the copies off for the next day, Luca went to the room with the gun ready, and when he saw a figure bent over the drawer where Tony's pills were hidden, he shot before he could change his mind. Only, to his horror, it wasn't Tony; it was an innocent janitor, Jorge Lopez, who had stumbled upon the pills by accident. He dropped Suzie's gun and ran. When Suzie arrived back at the room, she did her best to get rid of the evidence, by tearing up the note Tony had left behind and taking her gun with her, but she didn't dare try to gather up the pills, knowing as a Forensics teacher that if she left any evidence on the dead body, she could easily be placed at the crime. She was the last person in the room until Jorge's body was found, about an hour and a half later.

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Purpose: Knowing the approximate time of death can help to build a timeline of events on the night in question. There is no way otherwise to know for sure if any of the suspects were present at the moment the victim died.
Procedure: I compared the details about the state the body was in when it was found at 12:05 am with the average progression time of algor mortis, rigor mortis, and livor mortis. I then compared the individual results to see the average time since death that they all pointed to.
Data: Going from algor mortis, since the body was at 35.18 degrees Celsius when measured, the body had been dead for approximately 2.3 hours. Going from rigor mortis, which was found only in the face, he had been dead for around 2 hours. Finally, going from livor mortis, the light blue color on his front side which disappeared when pressed with a finger means that the body had been dead for less than 8 hours.
Results: At 12:05 am, the victim had been dead for just over 2 hours, meaning the time of death was around 9:45 pm.

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Purpose: To find the diameter and caliber of the bullet found at the crime scene. This is class evidence, which will help investigators when they are trying to piece the story of the crime together by showing who may have done the shooting.
Procedure: I measured the width of the bullet at the widest portion of the bullet head using a vernier caliper.
Data: The diameter turned out to be 8.7 millimeters wide, which, when converted to inches, gives it a caliber of .34.
Results: The diameter of 8.7mm makes it a 9mm bullet.

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Fingerprint: Tony and Suzie

DNA: Suzie

Powder: Morphine (Tony)

Fiber: Polyester (Jorge)

Ballistics: 9mm (Suzie)

Ink: Black Papermate (Suzie)

Time of Death: 9:45 pm

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The victim, declared dead at 12:05 am, was found on the floor between two lab stations. He was lying on his stomach, with a gunshot wound to the back and a gash in his forehead. There was blood on the edge of one of the lab stations. There was rigor mortis in his face only, and livor mortis on his front side which disappeared when pressed with a finger. His body temperature, taken at 12:05 am, was 35.81 degrees Celsius. Two fingerprints were found; one on a drawer, and one on the back counter behind the body. A coffee cup was found in a trashcan near the body, as was a torn-up note, and there were a few pills found on the ground, one of them crushed. There were not any signs of a struggle.

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Purpose: To decide on the chemical makeup of the powdered pills found at the crime scene. This is class evidence, and the results of the testing may suggest that a certain suspect was present at the scene.
Procedure: I mixed the unknown powder in a spot plate with two different liquids (water and sodium hydroxide) in order to see how it would react.
Data: First came water, with which the powder was soluble, ruling out CaCO3, CaSO4, and starch as possible identities. Then, I mixed it with sodium hydroxide, and they reacted to form a white precipitate, meaning the powder was MgSO4 (or, for the sake of the story, it was Avinza/morphine).
Results: The powder appears to be morphine.

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On Sunday May 5th, 2019 at approximately 11:35 pm, the presumably murdered body of custodian Jorge Lopez was found on the floor in the back of room C-122 at Okemos High School.

The suspects, who were seen entering and leaving the school on security cameras that evening, are:

Suzie Jones - the teacher whose classroom the body was found in, who had come in to meet Luca. She entered the building at 9:40 pm and left at 10:20, and she says that Jorge had been in her classroom when she got there. She immediately left to go to the science office to work, since the power was out in her room, and she stopped to talk to Mr. Chapman on the way. She never saw Luca, and said he wasn't answering his phone. Female, 5'5, 120 lbs, 42 years old, wearing rayon clothing.

Luca Rossi - Suzie's student teacher, who came in to run some copies for the next day. He can be seen entering the building at 9:30 pm, but was never seen leaving. He said that he left through the C hall silo doors, over which the cameras were turned off. He says that it took about 20 minutes to run the copies, and after he did that he stopped by room C-122. He says that the door had been unlocked but the room had been empty. Male, 6'1, 165 lbs, 22 years old, wearing polyester and cotton clothing.

Tony Smith - Luca's roommate, who had stopped by the school because he'd thought Luca was there, but he wasn't. He also ran into Jorge, who hadn't seen Luca either. Tony deals drugs, and is working on a Pharmacy degree. He stated that he felt threatened by Suzie, who implied that him and his addiction to pain pills are a bad influence on Luca.  He was in the high school from 8:55 to 9:10, and he says that he went to Meijer afterwards, which is corroborated by the Meijer security cameras. Male, 6'2, 205 lbs, 21 years old, wearing nylon and polyester clothing.

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Crime scene analysis by Áine Booth, Celia Spink, and Juliana Theis
Group #3 - 6th hour - May 2019