St. Louis Couple Points Guns At Protesters Passing Their House

The transcript describes an incident involving Mark and Patricia McCloskey, who were seen in a viral video holding weapons as protesters passed by their home. The couple claimed they were threatened by the protesters, who were en route to the home of Saint Louis Mayor Lyda Krewson. The incident is under investigation for trespassing and intimidation, with no charges filed yet.

Who was the Saint Louis Mayor mentioned in the context of the protests?

What was the reason for the protesters marching towards the Mayor's home?