education (39) Peshawar school killing

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Me: OK.
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Kelvin : John is an example.  His notebook camera is surveillanced by me.  It's educational.  Through the camera,  do you see that John is typing on the Keyboard ?
Mr. Lam: Yes,.
Kelvin: Tomorrow,  you do a motion of typing on the Keyboard.  I ask a photographer to take a short video for you.  The video will be post on YouTube. 
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Bradley : Kill those students, e.g., Mr. Lam. 
Kelvin : I demonstrate to Mr.  Lam how to hack John's notebook's camera.  I didn't teach him any hacking techniques. 
Bradley: I don't care . 
Miuson : You told Bradley that it is only a demonstration. 
Kelvin : That's the only way I save him. 
Miuson look at the sky and take a deep sigh and say, 
Miuson : I kill 150 students in Peshawar.  Why? I warned Bradley,  "Don't touch Kelvin's students,  e.g., Mr. Lam.  They are under my shelter. ".