Using 3D trajectory analysis, we dispute the Israeli military’s claim that:

Footage of a mid-air explosion before the blast shows the misfired Palestinian rocket that allegedly struck al-Ahli. According to our analysis, this footage in fact shows an exploding Israeli interceptor.

Most of the damage to the hospital and its courtyard was caused by unspent rocket propellant from a misfired rocket in the salvo. Our analysis of open source footage suggests that all seventeen of the rockets in question had finished burning their propellant while in flight.