The burly police officer testified that he ran into Cook at Schmitt Brothers Produce in Southampton, N.Y., in the summer of 2005, told him to step outside to the parking lot to talk and berated him, telling him to stay away from Bianchi.
Later, in the spring of 2006, Platt said he was sitting on a bench outside Village Cheese Shop in the town when Cook walked down the sidewalk past him.
"You're still not staying away from my daughter. I hear you've been leaving love notes for her," Platt testified he told Cook.
"And he [Cook] told me I had no class and was a disgrace to the uniform."
Around that time, a desperate Cook reached out to Bianchi and coached her to lie, "It would be nice if we got our stories straight but since nothing happened physically, who cares? Got it?" Cook testified.
Later, after the second confrontation with Platt, Cook e-mailed her, "Your stepdad is out of control. I am serious," and leaving notes for her at her new apartment in Brooklyn, according to his testimony.
Brinkley's daughter, Alexa Ray Joel, testified that Cook could be cruel to her, criticizing her for chewing her food too loud or for the way she played the piano. And she said that he once forced her naked out of the shower and made her clean up a water leak in the kitchen and shoved her head into a bucket.
By the end of the day, both parties were worn down and beaten. Cook, in tears, said, "These are not fond memories I keep close to my heart."
As she left the courthouse, Brinkley declined to comment to reporters, explaining "It's been a really long day. I heard a lot of things I didn't know."