Including This Morning host Ruth Langsford who sent the reality star a heartfelt message.
She responded: “Alex, I am so, so sorry for your tragic loss. I lost my sister to mental health last year so I understand the pain and shock you and your family will be feeling.
“I send you the hugest of hugs and if you ever need to talk you know how to reach me.”
“My condolences to you and your family and may your darling brother rest in peace,” she added.
When life is difficult, Samaritans are here – day or night, 365 days a year. You can call them for free on 116 123, email them at firstname.lastname@example.org, or visit samaritans.org to find your nearest branch