“As I was saying, the culprit then used the false alibi to be at the place of the crime while it was being committed. The only one who could have done that is Kawauchi-san...Obviously I’m not talking about the victim Kawauchi, but rather his daughter...” Oh yeah, it was a holiday today...
“Now that I think about it, even if she had been caught, there’s a good excuse simply in the date for why she would have been visiting him despite her well known recent general avoidance...”
...He understood the motive, but... guesses it still didn’t really make sense to him. ( The pictures around his house, and in her phone, they’d have a loving relationship until her parents divorce was mentioned... And even after, they clearly still loved each other as father and daughter. She hadn’t known he’d wanted to give his assets to her mom, or this could have been entirely avoided... Now neither side would have anything, the dad was dead, the daughter a murderer, and the mom being charged as an accomplice. )
...He felt sick ( if you think about it, isn’t solving this case going against the whole family’s wishes? It’s not like they would hurt anyone else, and once it was uncovered, there would be nothing but regret. Yet, he continued his deduction anyway ).
“The cat might have been the only witness, but there’s something unique about this cat as well. See, Natsu likes to eat grass, but she has an allergy. The culprit knew about this allergy, so it couldn’t have been either of the two who would merely meeting him as loan sharks. The culprit who killed him took off their shoes before even entering the house, something normal people wouldn’t even think of, especially when them being guests would be public knowledge.”
“Kawauchi-san is the only one who would have thought of the cat. And the reason for the spot of blood outside the front door was because she’d gotten some of the victim’s blood on her sock. She wouldn’t have had time to go back or discard and replace her shoes. Even if she’d managed to take off her socks, there should be a stain in her right shoe that perfectly matches the one on the front porch as evidence...”