It’s crazy i don’t even know if this really
I think a law exists in the first place because it sets boundaries and lets other people know they can’t freely do whatever they want. Juvenile killers deserve life behind bars because they murdered someone and that isn’t acceptable, they know the consequences that come with their actions they made.
It help people see the words more clearly
If the underlined phrase is <em>having been warned by her mother, </em>then this is a nonessential perfect participial phrase.
Nonessential phrases are separated from the rest of the sentence by commas, and since this is a perfect participle, this is the only correct option.