I wonder how many of these guns belong to the police (and hence the murders can't be prevented by reducing civil gun ownership)...
You can just subtract the numbers.
https://de.wikipedia.org/wiki/Waffengebrauch_der_Polizei_in_... (Second column is "number of fatal shots", third is "total number of shots fired at people")
Of course, the USA have 4 times as many inhabitants and the German numbers are only related to gun-killings, not other methods. But still, they are in a completely different dimension.