I think

He hanged himself by standing on ice slabs. Ice slabs melted and disappeared.

@Aura

To confused peoples that it is indeed not a suicide. To evaporate the melted ice. That is the reason why he moved all the furniture so that melted water doesn't deposit anywhere. Also he tried to show as if the beer bottle/can was thrown in rage after heated arguments to frame the other boy.

I think

He hanged himself by standing on ice slabs. Ice slabs melted and evaporated.

@Aura

To confuse people that it is indeed not a suicide. That is the reason why he moved all the furniture so that melted water doesn't deposit anywhere. Also he tried to show as if the beer bottle was thrown in rage after heated arguments to frame the other boy.

I think

He hanged himself by standing on ice slabs. Ice slabs melted and disappeared.

I think

He hanged himself by standing on ice slabs. Ice slabs melted and disappeared.

@Aura

To confused peoples that it is indeed not a suicide. To evaporate the melted ice. That is the reason why he moved all the furniture so that melted water doesn't deposit anywhere. Also he tried to show as if the beer bottle/can was thrown in rage after heated arguments to frame the other boy.