I know. But he didn't. He specifically told her she was breaking lockdown rules and therefore lockdown was a contributing factor.
We shouldn't need broadcasts. We need properly vetted police and sensible people in charge who do not tell us to flag down a bus when in need. Dunno about your area but the buses by me barely stop when you want to get on let alone help you confront a police officer.
What I'm saying is this person was going to murder a woman that day no matter what was happening around. Lockdown itself was not a "contributing factor" it was simply one of many opportunities to murder a woman in a society that is horribly unsafe for women. The contributing factor was the position of this vile murderous individual being a police officer.
So you are right & it goes without saying that we need proper vetting (and monitoring) of police and we need sensible people in charge.
Unfortunately we're NEVER going to achieve that to the level that is needed to keep people safe. Police already go through vetting and evil still slips through the net, or the evil is activated after they've been vetted. Better vetting is needed, but again it's not going to catch them all.
So -- no, we *shouldn't need broadcasts, but we do because the average person is unaware of safety protocols and their basic rights, and we live in an imperfect world where evil exists and will never be stamped out.