According to the article they killed a police officer and ran, if you don't pursue them how are you going to catch them? Aftersll, they did murder someone, and apparently they had warrants, so it seems reasonable to assume we dont want them out running around anymore as they sre likely to commit more fiolent crimes. Furthermore, if have a policy to not pursue, then every criminal is always going to run.
The fault is on the criminals, not on the police trying to apprehend them or the pursuit.