Why Wouldn't Her Killer Just Leave Her in the Bay?

My parents are jack and linla fever. You might remember my step father from season three of tenfold more wicked, the story about howard pearson and why he murdered his parents. They're both really impathetic people, which is why i talk to them about these stories,. I bring them to the murder site. This is where they found the body, yes, in 19 31. So lis to anything like this r no, very muddy. And this has probably all been filled in since then. Yes, pretty isolated. It's isolated at night. No, i've been thinking about that. Why wouldn't her killer just leave her in the bay, let her body float