The Duchess of Sussex Meghan Markle has paid an emotional tribute to her beloved friend who passed away suddenly.

In a letter posted on the website of Mayhew, an animal welfare charity that chose Meghan as one of four organizations it will support as its royal patron in 2019, Meghan said she was introduced to the charity by animal behaviorist Oli Juste, who passed away “tragically and suddenly” in January earlier this year, People reported.