By Jen Heger - Radar Legal Editor
Adam Shacknai, the younger brother of pharmaceuticals tycoon Jonah Shacknai, flew to be by his brother's side following a terrible accident that led to the death of Jonah's 6-year-old son, Max.
Adam had hoped to provide comfort for his distraught brother, RadarOnline.com has learned, but instead he discovered yet more tragedy, when just days later, he discovered the dead body of Jonah's girlfriend, Rebecca Zahau, 32, at Jonah’s mansion in Coronado, California, a wealthy suburb of San Diego.
As RadarOnline.com previously reported, Rebecca was found naked, hanging from an outdoor balcony with her feet and ankles bound. Police have called the circumstances of her death "very suspicious," but so far have not ruled if it was suicide or homicide.
"Adam arrived after Max's accident," a source close to the situation tells us. "Adam was there to provide comfort to his brother, Jonah. Adam came as soon as he could to be with his brother.
Rebecca had been watching Jonah's son on the day the little boy fell down a flight of stairs and sustained fatal brain damage, and the only other person in the house at that time was Rebecca's thirteen year old sister.
Just two days after Max's horrific fall, Rebecca's lifeless body was discovered by Adam at around 6:30 am.
Sources close to the investigation tell RadarOnline.com that Jonah was at his son's hospital bedside when Rebecca's body was discovered.
Rebecca's time of death hasn't been established yet.
"There was absolutely no party whatsoever, period. A neighbor might have heard loud music, but that was the extent of it. No party," the insider reveals.
Meanwhile, Jonah has been interviewed "extensively and exhaustively by law enforcement, about Max's death, and Rebecca's. Jonah has been extremely cooperative with authorities," the source says. Adam was also interviewed by cops about Rebecca's death.