Hamas leader Mohammed Diab Ibrahim al-Masri, is known as ‘El Deif’ or the Guest, because, for decades, he has stayed in different houses every night to avoid being tracked, and killed, by Israel and he is now, in charge of the militant group's military wing, the Al Qassem Brigades, the media reported.

Thought to have been born in the 1960s, El Deif is little known to ordinary Palestinians, a media reprt quoted Mkhaimar Abusada, a professor of political science at Al Azah University in Gaza, as saying. “He’s very much like a ghost to the majority of the Palestinians,” said Abusada. In 1996, El Deif, an accomplished bomb maker, was behind a wave of four suicide attacks that killed 65 people in Jerusalem and Tel Aviv and other outrages intended to derail the peace process, said media reports.