"What did my son do to die like this?" he pleaded, "What was his mistake? He is 11-month-old, what did he do?"
Tiny Omar, who died in an Israeli air strike Wednesday night, is the youngest casualty of the conflict in Gaza and Israel.
As violence escalated for a third day, Egyptian leaders have promised to support Gaza against Israeli attacks.
President Mohammed Morsi said he would not leave Gaza on its own and condemned Israel's "blatant aggression", hours after his prime minister visited Gaza.
Israel mounted a huge attack overnight, targeting dozens of locations. Hamas hit back yesterday, firing missiles into southern Israel. Last night air sirens were heard in Tel Aviv, reports Daily Mail.
Twenty Palestinians and three Israelis have been killed since Wednesday.
A photographer and picture editor for the BBC, Jihad Misharawi had arrived at Gaza's Shifa Hospital after Omar suffered severe burns in an airstrike that sent shrapnel tearing into his home killing a woman and leaving his brother and uncle critically injured.
Dozens of casualties from the Israeli barrage were being treated at the hospital as a distraught Masharawi said, "The Israelis say they are targeting militants but my son was an innocent."
Pictures of Misharawi holding Omar were splashed across front pages like the Washington Post's on Thursday, writes Huffington Post.
In a statement, the BBC said, "Our thoughts are with Jihad and the rest of the team in Gaza. This is a particularly difficult moment for the whole bureau in Gaza. We're fortunate to have such a committed and courageous team there. It's a sobering reminder of the challenges facing many of our colleagues."
Omar was later buried.
Western leaders have appealed for both sides to stop the escalation in violence.