Arias says Alexander had grown physically abusive in the months before she killed him, once even choking her into unconsciousness, but she kept seeing him because she was in love.

NPR: Prosecutor In Arias Case Set For Closing Arguments

Sophisticated practitioners, we have not troubled ourselves unduly with the murder weapon, which is lying in the middle of the bed, exactly where one would expect to find it if Chanya had killed him in the manner Vikorn says she did.

NPR: Excerpt: 'Bangkok Tattoo'

Doctors told him she had died from a respiratory illness but he believes that it was exposure to formaldehyde that killed her - although there is no proof her death was linked to living in the trailer.

BBC: Katrina's 'toxic trailer legacy'