Kobe Bryant’s 13-year-old daughter Gianna Maria Onore Bryant was also killed on the helicopter that crashed in Calabasas, California, according to a source with knowledge of the situation who corresponded with CNN.
@CNN
Most probable reason of the heli crashing is the counterflow-cooling compressor failing by causing a flow separation between the blades of the turboshaft engine, this due to wear and tear and low or no maintenance. This causes engine random explosions and loss of shaft power.