Investigators are focusing on what occurred in the moments before the helicopter crash that killed Lakers great Kobe Bryant and eight others in Calabasas on Sunday.

A reconstruction of the flight by The Times tracks the helicopter's path starting at a crucial moment near the end when the pilot left the San Fernando Valley above the 101 Freeway. Bryant and eight others were headed to Camarillo for a basketball event. Fog and cloudy weather had descended on the region, limiting visibility.

The analysis relies on data from aircraft-tracking firm Flightradar24.com. The altitude figures are preliminary, and federal investigators have declined to comment in detail about the helicopter's flight path.