David DePape called in to a San Francisco news outlet with “an important message for America”

If the Paul Pelosi hammer attack story wasn’t already twisted enough, David DePape called in to a San Francisco news outlet with “an important message for everyone in America” on the day police bodycam footage was released.

I’d like to know:

1) Why he was allowed to do this from jail.

2) Why it sounds like he’s reading from a script.

3) What is the purpose of them allowing his message to be broadcast.

So many questions.