Hillary Clinton announced the death of her youngest brother, Anthony Rodham, in a somber tweet posted Saturday afternoon.

The former Democrat presidential candidate described her brother as “kind” and “generous” in the post revealing his untimely passing, which occurred Friday night.

“We lost my brother Tony last night,” Clinton wrote. “It’s hard to find words, my mind is flooded with memories of him today. When he walked into a room he’d light it up with laughter.”

“He was kind, generous, & a wonderful husband to Megan & father to Zach, Simon, & Fiona,” she continued. “We’ll miss him very much.”

Rodham, 65, leaves behind his wife, Megan Madden, and three children.

The cause of his death has not yet been made public.