There is no need to get rid of guns. Guns don't shoot themselves. 99.5% of Law abiding citizens do not commit crimes. There is a need in the US to properly charge, determine bail if any and sentence to the extent of the crime/law required. More police are needed although the police usually show up after the crime has been committed.
There is also a need to address mental health issues. When I was young we had mental institutions for those mentally ill. They have since been closed and the mentally ill walk among us.