Suspect told police that he did 'not intend to kill'
Police arrested the suspect after an examination of security camera footage
Suspect is a professor in the Department of Applied Physics and Physico-Informatics
Victim suffered a broken nose, police said
Victim went missing in July, police said
Officers seized about 50 machines and 1.6 million yen in cash from parlor Seven
Parents of Wang Xiaoli came to Japan to provide DNA samples, police said
Body of a girl was found covered by a towel from the face to the abdomen