I think the more plausible occurrence is that Kalanick knew about it before hiring him, then hired him anyway, and only fired him after the Susan Fowler story c

I think the more plausible occurrence is that Kalanick knew about it before hiring him, then hired him anyway, and only fired him after the Susan Fowler story came out. Surely someone of Kalanick's stature would have been able to find out about this through back channels when he was vetting Singhal.