The reporting is still a bit vague but apparently a Tesla driver in the Marin Headlands decided to jump out and stab a cyclist.

Around 11:40 a.m., the driver of a Tesla and a cyclist got into an altercation, and at some point, during the confrontation, a knife was taken out. The CHP said the cyclist was stabbed…

This certainly is a twist on Elon Musk’s personal promise that his cars will prevent harm to cyclists. If the driver instead had run over the cyclist he probably would have blamed driverless and not have been detained. This knife fight is unusual, yet also reminiscent of the Los Angeles attacker who repeatedly jumped out of his Tesla to attack women. Perhaps it reflects who still would drive a Tesla.