John Cross, a prominent and highly successful dermatologist, died in a scuba diving accident. He did not leave a valid will behind. His wife, Sasha and their paraplegic, two-year-old daughter, Matilda, survive him. At the time of John's death, Sasha was expecting twin sons, Christopher and Christiano. Christopher was born four (4) months after John's death. Christiano, however, was stillborn. Apply the law to the facts above and discuss the legal position relating to the ability of Christopher and Christiano to inherit. Your answer must contain reference to applicable authority.