IMO if it was a DV incident, then GBC freaked, big time. If his character were to lean toward the narcissistic, arrogant, aggressive side, then self-preservation would have been on his mind. "crap, what do I do now? hmmm, too scared to call police or ambo's" Maybe he called BCsenior. Maybe BCsenior is also narcissistic, arrogant, aggressive...how do we know GBC didn't want to turn himself in eventually but was talked into/coerced/convinced to do otherwise? Long shot I know, but who knows? I doubt it played out this way. But I don't doubt for a second, the ability of some people on this planet to put their own interests before others, no what what the cost or consequence. Esp if said people have a strong sense of 'entitlement', the attitude that "I deserve to keep living as I am, I was...(stressed, provoked, etc etc." rather than own up to what they have done. I believe the perp/s believed/hoped they could get away with it.