The Palestinians have the capability and PR to manufacture false evidence.
In most cases, the evidence does not need to be presented; there are suckers that will lap it up just because of Israeli hatred.
So is the BBC lying about the civilian casualties? http://www.bbc.co.uk/news/world-middle-east-20383756
The death toll currently stands at three Isrealis and at least 50 Palestinians, about half of whom are estimated to be civilians
The mere fact that Israel couldn't even be bothered to promise to freeze settlement building in what is supposed to be part of Palestinian territory really tells you that Israel doesn't want peace/a Palestinian state. In fact, you can read that directly from a Jewish newspaper: Israel does not want a Palestinian state. Period.. At least that article shows you some people in Israel find Israel's actions deplorable towards the Palestinians.
How can you be surprised that Palestinians join militant organizations such as Hamas when Israeli actions breed such resentment? They were forced from their homes/land, and Israel no longer even pretends to pay lip-service to a Palestinian state. Negotiations with Israel are a farce...and you wonder why they are pissed off and launch rockets at the nation that treats them like shit?