[There is video footage of the school, more specifically, one of the labs in the school. In it stand a bunch of students looking on as their instructor straddles what appears to be a model of a human man, his hands around said model's throat as if he's choking it.]
Eventually, the victim will cease struggling as the lack of oxygen takes it's toll. [Sherlock concludes sitting up onto the dummy's chest, looking around at his class.] And now the killer is left to ponder one last thing; what to do with the body. Why not leave it behind, you wonder? Well that - [He leans over to the table beside him and grabs a stack of take home assignments, handing the to the nearest student and making them pass it around.] -will be for the lot of you to ponder tonight. Read over the case again and answer the following multiple choice questions. The last part of the paper is small essay.
[A few of the students groan at that while Sherlock claps his hands.] Excellent. I expect all of you to complete this for tomorrow. Class dismissed.
[Sherlock slowly slides off the model and collects his things.]
((OOC: Students feel free to stay after class to pester him/ask him things. Others can catch him on his way out to ask him what the heck he's doing teaching a biology class about murder.))