On what basis do you believe the explosion was more likely to be Israeli than Hamas? From what I've been able to glean it seems like the exact opposite.

1. Hamas is extremely willing to sacrifice their own people in pursuit of their goals.

2. Hamas was making homemade rockets out of water pipe. Far less reliable than Israeli munitions.

3. Isreal has demonstrated over and over that they will bend over backwards to minimize civilian casualties despite Hamas literally using them as human shields.

4. Israel is not shy about taking credit for bombings even if civilians were causualties when they have credible evidence of Hamas presence.

5. Hamas are documented liars in the region and even their Arab neighbors don't trust them.

Balance of evidence makes it far more credible that Hamas is trying to use their own failure to gin up support.

Do you have real and credible evidence to the contrary?