Detective Eps.Murder at school

detective, there was a murder in a closed room in a school sma. murder took place yesterday, at about 19:00 (according to forensic experts), the secretariat of extracurricular theater mask. victim was found dead with cuts impact (bruising) in the head and in some parts of the body (legs, arms, and abdomen). colleagues who found the two victims, fellow members of the theater, at 10.00. locked state at the time, but randy, colleagues who found the first victim with andi, have another key, so that they can open it.


The following is the condition of the room and the condition of the victim
condition of the room

room made of wood, even with the floor. located on the roof-top-this 5-story school. special theater room that has a special key cover, and there are only 2 copies (carried by both members) are all made of teak wood. a lot of scratches on the floor, which most likely is a rough object displacement. a lot of stuff here, most of whom are staging a property for inclusion in a homemade wooden box. beside the door, there is a hole the size of a large rat.

victim Conditions

victim was found collapsed on the floor, about 4 feet from the bottom right corner of the room. being in the right corner of the right, found the victim's keys. Key (secretariat)



there are some people I suspect, because it has a motive to kill the victim.
1. caretaker


He was always angry, because the members of the theatrical mask always come home at night. So he's always overtime without pay. When it's his turn to maintain. To increase income, he became an intermediary between the canteen and his wife, his wife sells ice Kopyor which he said all homemade.

2. staff canteen


At that time he got home that night, cleaning the dishes. He was sometimes annoyed, because the members of the theater under the guise of food often do not pay. She likes to bake with his wife, sometimes she brings to school dough.


3. employee hygiene


He sometimes furious, to remove foul language, because it is not uncommon to members of the theater after the guise of letting the garbage strewn latian in the classroom. Sometimes children also throw trash out their secretariat, and flying in the wind into the school yard. Because of this, the school failed to obtain Adipura. This caused great upset to the principal's employee hygiene. His hobbies are making all kinds of toys are made of clay.

4. Randy


Is a member of the victim's friends, he also found the first victim with andi, was also a have a spare key. He has a small entity if the appeal by the victim. He said, the victim had seized his girlfriend, so as long as 7 days their anger. His hobby is making theatrical script and murder cases.

PROBLEM

A. Who is the murderer?
2. How the victim could have died?
3. How to trick this confined space?


CLUE

Some objects have bergesar without any scratches on the floor. Just leave scars dust, yes, you know. And this room is in the lower right corner toproof.