Cassandra Waldon, the very first “Big Brother” contestant to enter the house on the U.S. version, has died.

According to a source at the United Nations –where she worked as Director of Communications for the International Fund for Agricultural Development — she was stuck by a car in Rome about 2 months ago and suffered a head injury. She never regained consciousness and passed away on September 25.

Julie Chen, the host of “Big Brother,” remembered Cassandra as a standout houseguest from the debut season in July 2000. Julie posted on Instagram:

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Rest In Peace Cassandra. Your light will continue to shine in this world because of the way you lived your life: with class and grace. May your family and loved ones find solace and peace. Thank you for bringing your intelligence, warmth and wisdom to the Big Brother house Season 1. You are in my thoughts and in my prayers. May God Bless your soul.

A post shared by Julie Chen Moonves (@juliechencbs) on Oct 4, 2019 at 1:13pm PDT

The “Big Brother” star  finished 6th out of 10 houseguests.

TMZ  reports that Cassandra’s funeral will be held next weekend in her home state of Maryland. She was 56.

Rest in peace, Cassandra.