So is that 10.5 years in total, starting from when he was detained? And would that make him eligible for parole in about 2024? If the idiot had fessed up in 2015 he'd have got a lighter sentence and been out by now. That's what arrogance gets you.
Story time. Years ago in India me and boyf at the time hired a moped for a few days to explore. He always drove, any witnesses or cameras would show he was driving. But on a quiet road just before we took it back I decided to have a go at driving and crashed after a few minutes. Nobody about, no buildings with cameras or anything. We were bruised and gravel-grazed but stopped short of a sheer drop. Had I died in that crash there is no doubt in my mind he absolutely would have got done for it. Nobody would have believed him and he'd have got jailed while entirely innocent.
So, while I'm not 100% about whether Shepherd was driving the speedboat or whether Charlotte took a turn, his arrogant behaviour and general cockiness makes me feel this is the right sentence. Bet he'll appeal it, though.