Police in Southern California are calling the death of 32-year-old Rebecca Zahau "suspicious".

Her body was discovered hanging in the 27-room beachfront mansion of her multi-millionaire, pharmaceutical executive boyfriend, Jonah Shacknai.

Even more tragic, the beautiful home is where Jonah's 6-year-old son, Max accidentally fell down the stairs and died days after Rebecca.

Jonah is in seclusion and said to be devastated by these tragedies.

There are lots of questions police and we are asking.