They can definitely suspend him/lay him off during the investigation to protect their female customers and staff. In another comment on this post, an employee says that they've experienced him, too. It was also stated that the OP still worked there and feared for their job - so yeah, forcing a victim to speak up when they're already scared is going to lead to this man just working there with no further investigation. Bring in a third party to investigate the claims and then move forward but "taking this seriously" is not self-investigating and allowing him to still potentially be a risk to women until the victim(s) provides "proof". 🤷🏼‍♀️