Robin Williams' Sweet Instagram Of Love To Oldest Son Zak Revealed

The dearly departed Robin Williams may not have been very tech-savvy, but he loved using social media to send love to his children. One of his last messages was just to let his son, Zak, know how proud he was of him. So sad.

Robin Williams, 63, loved his children very much - and was not afraid to let them or others know it. In one of his last few Instagram posts, Robin honored his son, Zak Williams, on his 31st birthday. In the touching message, Robin made sure to let his son know how proud he was of the 'grown man' he has become.

Robin Williams' Touching Message To Oldest Son On Instagram

Some of the heartbreaking discoveries after Robin allegedly took his own life on Aug. 10 are coming from his relationship with his three children.

For those of you who didn't know, Robin has three children - Zelda Rae, 25, and two sons, Cody Alan, 22, and Zachary Pym, 31.

In April 2014, just four months before his tragic death, Robin paid tribute to his son Zak's life with a sweet black-and-white Instagram photo from when he was a small child.

'You're a grown man now and I'm so proud of you. A little bit of you will always be my 'Mr Pym.' Happy Birthday, @zakpym!' Robin captioned the photo in honor of his son's birthday.

This was not the last time Robin would address his three beloved children on social media, either. Just over a week before his death, Robin shared a similar picture and message of his daughter, Zelda, for her 25th birthday.

Our thoughts remain with Robin's family during this difficult time.

Conan O'Brien Breaks News Of Robin's Death To Live Audience

As news of Robin's untimely death continued to spread throughout Hollywood, late-night talk show host Conan O'Brien received the sad news as he was filming his Aug. 10 episode.

Along with his guest Will Arnett, and co-host Andy Richter, Conan broke the news to his live studio audience at the end of the episode.

'We're just processing this information literally right at this moment,' Conan apologetically told his audience. 'We're thinking of Robin's family, of everybody he reached around the world throughout his life, and we're thinking about Robin tonight.'

CLICK HERE to watch Conan, Will, and Andy's heartbreaking speech about Robin's sudden death. More Robin Williams News: Conan O'Brien Breaks News Of Robin Williams' Death To Audience - Watch Robin Williams: Emmys Tribute In The Works For Fallen Comedian Robin Williams' Daughter's Heartbroken Tweet: 'I Love You'