Do timezones have anything to do with the problem at hand? They’re a shift of the clock to sync the clock with the Sun visually rolling across the sky. The inherent time is the same on the entire planet. Since it doesn’t really make sense to track the Sun’s relative position in the sky far enough away from it, they’d either default to UTC or the time on Earth of wherever in the US the death took place.
Do timezones have anything to do with the problem at hand? They’re a shift of the clock to sync the clock with the Sun visually rolling across the sky. The inherent time is the same on the entire planet. Since it doesn’t really make sense to track the Sun’s relative position in the sky far enough away from it, they’d either default to UTC or the time on Earth of wherever in the US the death took place.