You knew Luis as a responsible and smart colleague. He often participated in experiments and it seemed that he spent most of his life in the laboratory.

You were one of those who came to work first. Opening the doors of the laboratory, you discovered that Luis didn’t even go home today. The scientist leaned over the table, holding an empty flask in one hand, and supporting his head with the other. Apparently he tried to stay awake until the last moment, but fatigue took its toll.