Baldwin was supportive? He just killed your wife for crying out loud, what would being supportive even mean here? Did he give you his autograph sheesh.
What it means is that the lawyer has established an image that he’s genial... which means that he won’t be being ‘malicious’ or be accused of ‘having a vendetta’ when he goes to destroy Baldwin’s career and fortune.
"Supportive" means that he was offered a big out of court settlement...payoff, to not make a big deal out of this.