Hand-biting in the Public Toilet

This is another strange crime case. 

Police in Gifu City arrested 37 year old city employee, Yusuke Tsutsumi, on suspicion of assault for biting the left hand of a 46 year old man inside the public toilet in Meitetsu Gifu train station around 11 pm last Saturday. Mr. Tsutsumi denied the allegation, saying “I have no recollection of it”. Police said the two men do not know each other and Mr. Tsutsumi was not intoxicated.  

Does this sound weird or what?