CNN reported that Zelda, whose father committed suicide, was disappointed as at least two people made morphed photos of her father's death and posted it on her Twitter account.
25-year-old Zelda initially had asked her followers to report the accounts to Twitter, however, the accused persons continued to post such disturbing images from several fake accounts.
Disappointed with such persons, Zelda posted her last tweet and said, "I'm sorry. I should've risen above. Deleting this from my devices for a good long time, maybe forever. Time will tell. Goodbye."
Deleting this from my devices for a good long time, maybe forever
On Instagram, a photo sharing app, Zelda wrote, "I will be leaving this account for a bit while I heal and decide if I'll be deleting it or not. In this difficult time, please try to be respectful."
On blogging site Tumblr, Zelda wrote, "To those he touched who are sending kind words, know that one of his favorite things in the world was to make you all laugh."
"As for those who are sending negativity, know that some small, giggling part of him is sending a flock of pigeons to your house to poop on your car. Right after you've had it washed. After all, he loved to laugh too," she added.
While the young actress said quit to social media following abusive behaviour of some people, many others supported her during this miserable time. On Twitter, her followers wrote, "You did nothing wrong @zeldawilliams, some people are just plain evil."
The Oscar winning Hollywood actor and comedian Robin Williams was found hanging by a belt, wedged between a door and its frame in a seated position just off the ground. [Read: Robin Williams hanged himself with a belt, after slitting his wrist]