Hazem Qassem

Hazem Qassem is not mentioned in any of the provided news articles. Therefore, it is impossible to provide a summary of who they are, why they are newsworthy, recent events related to them, or their current relevance based solely on the given information. The articles focus on Israeli military actions in Gaza, the retrieval of a hostage's remains, and the impact of these actions on the Palestinian population, but do not reference anyone named Hazem Qassem.