Very well. I shall also start by saying that,
The chain on my room's door was set. Ozaki was found dead inside.

--

The culprit never entered through the door, they entered through another passage avoiding the chain lock completely.

>>4520
The culprit entered through the door!
--
The culprit committed the murder inside, left the room, and set the chain from the outside!

The chain must be set from the inside of the room!

--

When the chain is set there is another way to enter and or leave the room.

>>4522
While the chain on the door is set there is no way to use the door as a means of entry/exit!
--
The culprit entered through the window and locked it from the inside!

>>4523
There is no window in the room.

--

How about this then!?
The culprit is only known to have entered through the door, that doesn't mean he left through it too! The culprit left through something other then the door!

>>4524
The culprit did not leave through anything other than the door.
--
The culprit entered the room using the door before the Ozaki entered! Then Ozaki set the chain, was killed, and the culprit simply hid inside the room and was never found!

>>4525
After killing Ozaki the culprit left the room. The culprit is not hiding.

--

Kinjo locked the room via the chain after he was already wounded.

>>4526
Kinjo was still alive when the chain was set.
--
There's an entrance/exit aside from the door that the culprit used to leave.

>>4527
before he was ever wounded*

>>4528
the chain was set before*

>>4527
The culprit left through the door.

--

Kinjo was actually killed from the outside of the room.

>>4530
The moment Kinjo died, both he and the culprit were in the same room.
--
Someone else entered the room, set the chain, and hid, after the culprit had left through the door.

Nobody other then the culprit set the chain lock.

--

>The culprit did not leave through anything other than the door.
The culprit never left the room.

>>4532
Correct, the culprit never left the room.
However, when the culprit set the chain, Kinjo was not inside the room!
--
The culprit and Ozaki are the same person! So Ozaki set the chain and killed himself!

>>4533
Heh, nice try.
Ozaki and the culprit are separate people! This was a murder!

--

It's useless kinjo, it's all useless.
There is another way into/out of the room.

>>4534
Yes, there is more than one way to enter/exit the room. But Kinjo didn't enter using a window!
--
The chain on your closed room was set, but not at the time of the crime's discovery!!!

When the closed room was discovered the chain was set.

--

There is another way besides the door and window.
A secret passage if you will.

>>4536
Yes, there is another entrance/exit...but it was not hidden at all! And if you think you solved it with that, think again: Even though Kinjo and the culprit were in the same room, the culprit didn't even touch Kinjo!
--
The crime was committed after the closed room was discovered! The culprit and the victim were inside the room! The culprit set the chain beforehand! After the chain was cut by the discoverer of the crime, the culprit killed the victim and walked out!

>>4537
Ozaki was killed right before the chain was set. When the crime was discovered Ozaki was dead.

--

Is that all? Seems like you are just buying time for more bullets~
The culprit simply killed Kinjo with a ranged weapon.
Ex. a gun, throwing knife, or an arrow even.

>>4538
No ranged weapon was used.
--
It's still possible to leave through the door even after setting the chain!

>>4539
When the chain is set it is impossible to use the door as an entrance/exit.

--

The culprit didn't psychically touch Kinjo, but the weapon he used to kill with did.
Thus a multitude of simple objects could have been used.

>>4540
Close enough, I'll go ahead and concede defeat here.

The culprit went inside the room, set the chain, and also made a fire in the fireplace before going to sleep.
At some point during the night, Kinjo dressed up as Santa Claus and went down the chimney, into the room.
However, once he arrived at the bottom he came into contact with the flames, and was scorched to death.

Merry Christmas~

not even gonna try one last theory, I honestly have no clue

>>4541
Ahaha, I had a feeling it involved a chimney! Although in my theory he turned into ash and left the room that way. Anyway good game, props for the Christmas theme.

I've told Kinjo the answer over IM just like he did before for the last duel.

Oh yeah and Rudolf, if you still want to challenge me then just make a thread and we'll figure out a good time. You can make the rules if you want. Although I'd like to keep the 5 minute rule. Since it is called Closed Room Blitz after all.