Detective Riddles

Heheh...sooo do u have another guess for the tape recorder thing...??

Oh I have another one..its from detective conan...

A celebrity wnet to the detective and said some1 is following her... the detective that night went to her apartment with the celebrity to check it..a bod was found there..the clebrity said she doesn't know the guy but was obviously lying

evidence:
there was a cirle kinda thing that looked like it was from the knife in ground (it was wood)
that part was wet
the temperature of the room was unusually hot
the victim was stabbed in the back
Suspects:
The manager who feel intentionally to get a strand of hair that was in the victim's hand

The celebrity where the victim was found in her apartment

The celebrity's rival who has been going in and out of the victims apartment w/o the celerit's consent...

or was it suicide??

the celeberty killed her rival?

first riddle=the nephew.when people are drunk,there is no telling what could of happened that they could even remember.
second riddle:suicide.the celebrity probably paid someone to kill her rival