I very rarely post, and do not engage in 'tit for tat' exchanges. However, I feel obliged to comment on this crash, given that in my relative youth I spent an awful lot of time in close proximity to multiple fast jets (and moreso than simply being in the gaggle during visual RTB manoeuvres). No, I was not a Macchi Rouletter.
I am quite surprised that no-one with a mil background has mentioned the Mayday Relay option; aircraft A transmitting on behalf of aircraft B, in distress. Had I been in the boots of the unfortunate Viper 1, I suspect my initial call would have been along these lines:
"Mayday relay, mayday relay, mayday relay. Viper 1 and Viper 2 mid-air collision. Viper 2 appears to have impacted the water. Viper 1 suspect only minor damage my aircraft. Standby for further."
This is not meant as any criticism of Viper 1's actions. I am not a party to the Kangaroo Court.