Paula Goodbody

Paula can be the murderer because she's a hairdresser and she may have had a strand of black hair on her.

It's may have been Paula Goodbody because she is a hair dresser and she have scissors and she have a differents type of strad of hair for a false track

Paula is right-handed so she isn't the murderer who is left-handed.

Yes but she have a cast on her right hand so she could have used her left hand.

I'm agree with you

Paula Goodbody is hairdresser, Autumn's sister. She's got a blood B-negative, auburn hair and she's right handed.
Paula must have been the murderer as her blood is B-negative.
She must have taken a strand of black hair and put it on the scene of crime for make a false track.
She must have done a trace of spike heeled shoe in the red wine and she must have left a mark of lipstick on the glass.

However, she's right handed and the murderer must be left handed so i think Paula Goodbody isn't the murderer but she's accomplice with Tony Malatesta

That's what a wanted to say. I share your opinion !

For me, Paula is the killer. Her blood is B negative like the blood that the scientist have found on the scene of he crime and she have used her left hand given that she has a cast on her other hand. Paula have taken the scissors in her hairdressing salon.