A video at CNN with reporting by Sara Sidner from Gaza tells us "how a small child became a symbol of civilian casualties." Some of her narrative: "A scene no parent should ever have to endure"; "Four year-old Mahmoud Sadallah lies dead in the arms of a neighbor, a child of Gaza, another victim of an airstrike"; "we saw no evidence here of military activity." There's even a scene where Ms. Sidner reports having to flee where she is currently reporting because "there are airstrikes" and "rockets." Since Hamas doesn't have an air force, we're supposed to assume that Israel's military is responsible for Mahmoud's death.
Except, as Joel Pollak at Breitbart noted this morning, others have shown that Sidner wants us to believe isn't the truth (bolds are mine throughout this post; links are in originals presented):