Heather Morris posts heartfelt tribute to 'Glee' co-star Naya Rivera on anniversary of her death

LOS ANGELES -- Heather Morris "can't believe it's been 4 years" since the death of her friend and "Glee" co-star Naya Rivera.

Morris shared a post on Instagram on the anniversary of Rivera's passing. The "Glee" star was found drowned six days after going missing during a boat ride with her then 4-year-old son.

She was 33.

"Every year I'm taken by surprise how much it still hurts. We grew up together, fell apart, and came back together in such a beautiful way," Morris wrote. "God you're missed so much...except I can't shake the feeling you never left...you're still here with us..guiding us to our highest potential."

She ended the post writing, "I miss you Nay Nay."

Authorities say the search to find "Glee" TV show star Naya Rivera in a Southern California lake ended Saturday without any results.

He was 31 when he "died of mixed drug toxicity."