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Crime scene (The body- Rayna (The Chromatogram on the note was for Ms…
Crime scene
The body- Rayna
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Could be a result of poisoning due to the fact that he had lunch, a coffee and a bottle of water in the day
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- A short strand of hair was found at the crime scene, located on Mr Bonnar’s shirt.
- The bulb was damaged so no DNA evidence was present.
- Some clothing fibres were found on the door of the music corridor. They were stuck on the lower edge of the door, near the hinge.
- Under the microscope it was revealed that they were dark in colour and woollen fibres that had Mr Bonnar’s DNA on.
The witnesses
Student 1
Very assertive and calm with her speech look at the question asker directly in the eye show that she was not nervous. [Most likely innocent]
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Mr Pedder
Didn't look at the questioner, he blinked a lot and seemed nervous, can't keep still on his chair.
[Possible suspect]
The Physical Evidence
Things to test
Blood sample
From victim, to see if he was poisoned
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Hair sample
If there are no finger prints from criminal, hair sample could help find criminal
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ink on the note
to see who's pen it was
Miss Rivet wrote the note according to the paper chromatography 
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According to the evidence, Miss Rivett is the most guilty
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- We think that Ms. Rivett is the murderer as Mr. Bonnar's skin cells and clothing fiber was found in the music corridor and she also had the matching pen ink from the note at the crime scene and she also had a motive
Ms Rivett
- Ms Rivett was complaining to another music teacher about the pastoral work load that she had been given by Mr Bonnar. She was feeling snowed under but Mr Bonnar was not very understanding.