Because the BBC did the investigation, not an governmental or international police service. Therefore they can't (and shouldn't) find guilt or innocence. They can only show the facts as they have found them, which then allows the gov/international services to decide whether or not to investigate.
It's not a perfect system, but then which one is these days?
There's many reasons ... maybe the news source doesn't have publishing rights to the video, sometimes it's out of respect for the dead (that they not be used as "death porn" for clicks), and sometimes it's for the living who don't need to see their son - yet again - lying slaughtered in the street.
True, but the following paragraphs from the article are telling ...
But several former Israeli soldiers who viewed the BBC's evidence said they believed Israel’s legal system would protect soldiers who used lethal force, regardless of whether it was justified.
One former sergeant who served in the West Bank from 2018-2020, said it would take "an Israeli soldier murdering a Palestinian at zero range for it to be taken as murder in Israel" and "there is basically a 0% chance of criminal proceedings" against a soldier in cases such as Adam's.
The pursuit began at an LCBO location in nearby Clarington, when an off-duty officer reported an attempted theft to Durham Regional Police at around 7:50 p.m. ET.
So somebody stole some booze and cops thought it warranted a high speed chase that resulted in 4 deaths.
That's not meant to keep all people safe. It's meant to hide the problems the BC gov't hasn't done anything about, so addicts die in dark corners and under bridges again.
America is quickly loosing the strong leadership persona it's held for decades due to the utter stupidity of its leaders (both former and current). Biden has been lax on his oversight, but in fairness to him he had a shitshow to contend with in dealing with the fallout from Jan 6.
Come Nov Americans had better figure it out before everything it's worked for goes spinning down the drain.