There was a lot more traffic on DCSO than Rattlesnake, tail number, call for coroner, even a perceived 'disturbance' between people onscene. Since they went to a TAC channel (DCSO -'C', SUPV), The traffic may not have been recorded in the archives. It depends upon if the feed provider was around to switch channels, provides the TAC channels anyway as a rule, etc.
Also since Elbert AND DCSO dispatch on the same channel there was 'twice' the response on a single channel. The units designated 'echo charlie' and the unit number.