Kris Jenner‘s niece Natalie Zettel is speaking out following the unexpected death of her mother Karen Houghton.

The Kardashians star’s late sister passed away on Monday (March 18), reportedly from natural causes, though an official cause of death is yet to be revealed.

The next day, Natalie took to her Instagram to pay tribute to her mother, sharing a sweet, emotional post, along with photos of Karen throughout her life.

See what she said inside…More Here! »