The basic purpose of journalism is to provide the public with the following answers to a specific news story: who, what, when, where, and how. After all of that information is provided, the viewing and listening audience should be allowed to make their own mind up about the story.
The truth is that she was likely killed by one of her own people. While the Israeli government promises a thorough investigation, there is the usual silence and lies from their Palestinian counterparts.
May the memory of Shireen and every journalist who has been killed in the line of duty be a blessing. Z”L.