What I think is that people armed with firearms give the police much less reaction time, while people armed with knives can, if they're not on a vector that puts them in contact with other officers or civilians, be pacified more gradually.
This is a fantastic, measured answer - I'm always pleased to see reasonable responses to unreasonable comments.
https://www.youtube.com/watch?v=cX5CPx4RKWw
Here's another video of a man wielding a knife and approaching police. In the US he's much more likely to be killed.
It's also worth noting that in the US an officer is much more likely to be killed. Hence why regular people are more likely to be killed by police. It's a fearful, kneejerk reaction thing.
I took a quick look and found this. [1][2] Looks like number of cop deaths are at a 50 year low but can't find a country by country comparison.
[1] http://www.groupnewsblog.net/2014/09/i-saw-posting-on-facebo...
[2] https://www.techdirt.com/articles/20131230/15411225716/numbe...
Nice stigma. People with mental illness are not violent; mental illness does not predict violent behaviour. That's about as offensive and ignorant as saying "has more black people and/or drug addicts".
You have moved from one statement to another without much to show for it.
Reusing your own comment in a different thread, "what terrible reasoning"
http://heavy.com/news/2015/12/san-francisco-sfpd-police-shoo...
In all 3 clips (your two, plus the parent's) what I see is that a person holding a knife is an immediate and real danger to anyone within 15 feet of them.
Also, if I'm seeing correctly, both assailants had already been pepper-sprayed, is that right?
If the UK police are able to subdue these people without killing the perpetrator or getting killed themselves, on a per capita basis, I'd say the UK response is better.
That being said, if the numbers you're looking for exist in an unbiased, non-doctored study, I'd be surprised. If they did, and they supported the thesis, you'd see them quoted in every article advocating gun control.