Ouch,
Excessive speed definitely a factor.
If it's a t bone, likely the cruiser pull out in front of bike.
Sad.
Generally it's biker dies and car driver is unhurt.
If you had Taipans there Marty you'd want to be wearing leather pants. They have a bad habit of rearing up and striking passing vehicles. I've had one strike at a Toyota at the top of the wheel level. Tiger snakes up here do the opposite. With an approaching vehicle they do a big aerial backflip and go in the opposite direction.