Nine months after Audrina Patridge’s 15-year-old niece, Sadie Raine Loza unexpectedly passed away, her cause of death is being revealed.

As Mamas Uncut previously reported, Audrina publicly announced her niece’s passing back in February. In an Instagram tribute, the reality star wrote, “My heart hurts to even write this. I know it’s not goodbye forever, but it is the hardest to say goodbye for now.”

“We will miss you and cherish every single moment we had with you,” Audrina continued. “Rest in peace, Say Say!! We love you forever & ever!”

Sadie’s mom, Audrina’s sister also shared a statement, writing, “[She] has left this earth for the heavens. Writing this was the hardest thing I ever have had to do, not knowing the right words, I’ll leave you with this, Sadie liked to remind me that the first law of thermodynamics aka (Law of Conservation of Energy) works in all spheres of life.”

“Transformation is a better word than death. Her story will save countless lives. Her memory will never be forgotten. Rest In Peace, you brilliant starseed.”

Now Sadie’s tragic cause of death is being revealed. According to TMZ’s law enforcement sources, Sadie died at 15 years old of a narcotic drug overdose.

Police are now trying to find out who gave Sadie the drugs. Meaning Sadie’s manner of death remains undetermined.

TMZ alleges that a source claims Sadie purchased Percocet through Snapchat but that the narcotic was also laced with fentanyl.

Devastating. This is a developing report Mamas Uncut will continue to update. Our prayers remain with the Loza and Patridge family during this difficult time.

‘The Hills’ Star Audrina Patridge Mourns the Loss of Her 15-Year-Old Niece

Sadie’s stepfather, Kyle Loza, also added a tribute post of his own. “I will carry your memory with me until I see you again. I can’t stop thinking about you. I’ll never stop loving you, and I would do anything to laugh with you one more time. You were my first Love,” he wrote, signing the caption as ‘Dad.’

Kyle, who is a freestyle motocross rider and musician, married Casey in 2009 – the year after Sadie was born. One year later, the couple started a family of their own – a soon-to-be 13-year-old son named Draven, who was born in April 2010. They also have a 4-year-old son named Vallon, who was born in October 2018.

Audrina Patridge Has a Daughter of Her Own

Did you know Audrina Patridge has a daughter of her own? She gave birth to her six-year-old daughter, named Kirra Max, on June 24, 2016 – just a few months before she tied the knot with motorcycle and BMX rider Cory Bohan. The two started dating in 2008 and were together for eight years before marrying.

Unfortunately, the marriage didn’t last long. Roughly one year after tying the knot, Patridge filed a restraining order against Bohan and filed for divorce – citing abuse and violence. The divorce was finalized in December 2018, giving Patridge some peace of mind over the safety of herself and her daughter.

Patridge hasn’t been involved in many big projects since her time on The Hills. She was a contestant on Season 11 of Dancing With the Stars and made it to the sixth week when she was eliminated – she finished in seventh place with her dance partner, Tony Dovolani.

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Our hearts go out to Audrina Patridge and her family over their most recent loss. Sadie’s death comes just a week after she celebrated her 15th birthday. A cause of death hasn’t been revealed, but it’s a tragedy either way. It’s just another reminder to hold those you love as close as possible.