The 55-year-old ITV presenter isn't usually one to be affected by online trolls, but the tirade of hate he was sent following the tragic death of Caroline had a real impact on Piers.
In his brand new book Wake Up, released today (15th October), the famously opinionated journalist admitted that the backlash he received for paying tribute to Caroline after her death was "hurtful".
In an excerpt shared by the Mirror Online, Piers wrote: "The court of public opinion instantly delivered another verdict: I was to blame for Caroline's suicide."
He added: "Yes, me, someone who had tried to help her privately and publicly through her darkest time, and who had never written or said a bad word about her in my life."
While Piers admitted that he had written and published "many negative stories about other celebrities" in the past, the online abuse that he received after Caroline Flack's death impacted him massively.
He explained: "Caroline was a friend of mine and I had nothing to do with her death, so the ferocious outpouring of abuse suggesting I did is as wrong as it is hurtful."
Piers, who is well-known for his thick skin and feisty online presence, felt completely shaken after being targeted by the online trolls.
He continued: "The foul-mouthed savagery of the 'YOU F****** KILLED HER YOU C***' vitriol spewing into my Twitter feed stung more than the usual troll abuse.
"I feel desperately saddened by her death and utterly enraged at now being blamed for it.
"And what a sick irony that the very same keyboard warriors accusing people like me of hounding Caroline to her death are the people who incessantly post abuse to celebrities and people in the media - and who are right now busily hounding those same people online."
Piers revealed that the abuse didn't stop, and said the messages were getting to him after a near sleepless night.
He penned: "This time, it is getting to me.
"It's so particularly vile and personal, and based on utter lies. I feel peculiarly raw and fried - shocked and upset by Caroline's death, and sickened at being blamed for it."
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