Kate clenched her hands into fists, watching him walk away. She knew he was baiting her; and he knew it was going to work.

She was a homicide detective. This was a murder. Beckett wouldn't be able to turn her back on that if she tried.

"Fine," she hissed, coming up to him and grabbing his arm. "Here's the deal. We come back later, sweep the scene for anything they missed. If we find anything - and I'm not saying we will - we can do our best to pursue it." She held her finger up so Castle wouldn't interrupt her and continued. "And do not tell anyone we are doing this. Especially any cops."