The reason there's so many shootings isn't because of access to guns, it's because of a few reasons:
1. Mental health crisis. Being trapped indoors and forced to social distance for for year isn't good for somebody's mental health. Sometimes these people actually go crazy and decide to kill people. It's honestly very sad.
2. Less police in large cities. Because of the BLM riots, in many large cities they have reduced the police force down to almost nothing. Essentially if you can't enforce the law, it doesen't exist.