From the title, you'd think these men were armed and inside the hospital terrorizing people. Turns out one of them was getting treatment there. The Israeli forces that killed those three (who were getting treatment or visiting someone getting treatment) were also dressed as civilians (nurses and doctors)

Truly the most pathetic and most cowardly army in the world.

Hamas claimed one of the dead in Ibn Sina hospital as its member. The allied faction Islamic Jihad claimed the other two, saying they were brothers. Ibn Sina said one of the brothers had been receiving treatment for an injury that paralysed his legs.

No trial, no evidence except that from the Israeli side, just a field execution. No threat from these men whatsoever... and one of them was had a mobility disability too.