A student in a Chinese school split the throat of a teacher who confiscated his phone .
Teacher Sun Wakang was moving around the class during a chemistry lesson at a school in Fuzhou, eastern China’s Jiangxi province.
He discovered a student identified as Lei playing with his phone .He confiscated the phone ,since it is against the school rules to play with a phone during learning time.
The next day ,the student went to teacher Sun’s room where he was marking the student’s papers.
Lei pulled out his knife and cut the teacher’s throat from behind .
The 32-year-old father of one died at the scene as the student fled.
Lei called the local emergency number and presented himself to the police in Shanghai.