The San Diego County medical examiner ruled Rebecca Zahau 's death a suicide . Rebecca 's family did a private investigation after officials would n't press criminal charges . Lawsuit accuses boyfriend 's brother , ex - husband and ex - wife 's twin of plotting her death . Zahau died two days after her boyfriend 's brother suffered a fatal stroke in the same home .
The San Diego County medical examiner ruled Rebecca Zahau 's death a suicide . Zahau 's family did a private investigation after officials would n't press criminal charges . Lawsuit accuses boyfriend 's brother , ex-wife and ex-wife 's twin of plotting her death . Zahau died two days after her boyfriend 's son suffered a fatal fall in the same home .