Collision near Downey off-ramp

What happened, step by step

1. 2:08 AMVehicle information reportedDispatch notes describe a black Tesla.
2. 2:09 AMDispatch updateAs loggedALL SPUN OUT DUE TO RAIN
3. 2:09 AMVehicle information reportedAs loggedPARTS OF VEHS FLYING OFF// ALL AIR BAGS DEPLOYED ON VEH
4. 2:09 AMDispatch updateAs loggedALL HIT SPUN OUT AND HIT CD
5. 2:09 AMVehicle information reportedAs loggedVEHS LOOKED DMG
6. 2:09 AMVehicle information reportedAs logged5 VEH TC SPUN OUT - ALL SEPRATED - ALL WIHTIN AREA
7. 2:09 AMVehicle position reportedDispatch notes describe a vehicle on the right shoulder.
8. 2:10 AMVehicle position reportedA caller reported a vehicle in the center divider.
9. 2:11 AMLanes affectedAs logged[5] CAR DEBRI BLKG LNS / VEHS SWERVING TO AVOID
10. 2:11 AMVehicle information reportedAs logged[4] NEAR MISS TCS W/ MULTIPLE VEHS
11. 2:13 AMVehicle information reportedAs logged[1] 6 VEH TC
12. 2:14 AMVehicle position reportedDispatch notes describe a vehicle in the center divider.
13. 2:14 AMVehicle information reportedAs logged[3] 4 OTHER VEH ON THE RS
14. 2:14 AMVehicle information reportedDispatch notes describe a blue Nissan Altima and a black Tesla.
15. 2:15 AMDispatch updateAs logged[3] RP ADV WITNESSED 1ST TC FRM L/ 175 THEN THIS TC OCC'D
16. 2:15 AMDispatch updateAs logged[2] RP ADV SEPERATE TC FRM L/175
17. 2:16 AMDispatch updateDispatch notes describe a black Honda sedan.
18. 2:17 AMDispatch updateAs logged[5] RP IS STANDING ON RS WITH SEVERAL GOOD SAMS
19. 2:33 AMFire department contactedAs logged[1] RP ADV FIRE AND CHP 97

Every entry in the dispatch record below is represented here.