Twitter is looking to revamp its user-protection policies after Zelda Williams, the daughter of comedian Robin Williams, was run off of the social site by abuse in the wake of her father's apparent suicide.

"We will not tolerate abuse of this nature on Twitter," Del Harvey, Twitter's vice president of trust and safety, said in a statement. "We have suspended a number of accounts related to this issue for violating our rules and we are in the process of evaluating how we can further improve our policies to better handle tragic situations like this one.

"This includes expanding our policies regarding self-harm and private information, and improving support for family members of deceased users."

Zelda Williams abandoned her Twitter and Instagram accounts Tuesday after saying at least two people were sending her Photoshopped images of her father's dead body and other disturbing messages -- some blaming her for father's death.

"I'm sorry. I should've risen above," she wrote in her final tweet. "Deleting this from my devices for a good long time, maybe forever. Time will tell. Goodbye."

The episode proves that, with the anonymity of the Internet, some people will be horrible no matter the situation.