Nick Carter is mourning the death of his younger brother, Aaron Carter, who died on Saturday, Nov. 5, at age 34.

The Backstreet Boy shared a series of childhood photos alongside his late brother in a carousel post on Instagram. In the caption, he penned a sad message about the loss of his bother.

"My heart has been broken today," he wrote. "Even though my brother and I have had a complicated relationship, my love for him has never ever faded."

Nick Carter continued his tribute to his brother, adding, "I have always held onto the hope, that he would somehow, someday want to wa...