Sting and Trudie Styler were among the many people grieving a personal loss on the 20th anniversary of the 9/11 terror attack.
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The celebrity couple tragically lost their beloved friend, Herman Sandler, and Trudie paid a poignant tribute to him on Instagram.
She wrote: "On the 20th anniversary of 9/11, I still miss and mourn our dear friend and benefactor of the environment - Herman Sandler.
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"On this day I think about his widow Suki and his three beautiful daughters whom I’ve always called The Three Graces. Herman would, had he lived, been a happy grandfather. His loss is huge to us all. To the many of you who’ve lost and mourn those lost, my heart goes out to you."
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Many of Trudie's followers commented on the post, with one writing: "Sadly never got to meet Herman but my dad has told me many stories," one wrote, while another commented: "Praying for you all, his family and all who loved him." A third added: "Beyond thought and words. Thinking of that day so much Trudie."
Sting and Trudie Styler's friend was one of the many victims in the 9/11 terror attack
On Saturday, people around the world mourned for the almost 3,000 people who died in the aftermath of the Twin Tower destruction in 2001.
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Political figures and celebrities around the world paid their respects with poignant tributes on social media, from the Queen to former President George W. Bush, who was in office during the devastating event.
As well as remembering those who died, many people marked the devastating anniversary by doing something good in an initiative called 9/11 Day.
Sting and Trudie Styler paid their respects on the 20th anniversary of 9/11
The non-profit organisation works to transform the annual remembrance of 9/11 into a worldwide day of unity and doing good, encouraging people to remember and pay tribute through good deeds.
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Jenna Bush Hager, daughter of George W. Bush and Today host, shone a light on the uplifting initiative in a poignant segment of Today.
The mom-of-three took part in the initiative herself, and said that she was "inspired and moved" by something that brought light to a dark day.
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