One person no one has yet blamed here is the person who actually did the robbery that caused cops to be looking for him. I don’t know any legal theory that would hold him responsible, but morally, your evil acts have consequences you can’t always predict.
Another group responsible for the deaths of young men are the absent fathers who did not and could not teach their sons to respect authority. Resisting arrest is usually a factor in police involved homicides, justified or not.
“And whoever does not provide for relatives and especially family members has denied the faith and is worse than an unbeliever.”
1 Timothy 5:8
“Since parents have given children their life, they are bound by the most serious obligation to educate their offspring and therefore must be recognized as the primary and principal educators.”
Blessed Paul VI, DECLARATION ON CHRISTIAN EDUCATION
GRAVISSIMUM EDUCATIONIS
vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_decl_19651028_gravissimum-educationis_en.html