More details have come to light about Jesus Guerrero's sudden death.

Three months after the celebrity hairstylist died while battling an illness, his immediate cause of death was ruled pneumonia and cryptococcosis, a fungal infection, with acquired immunodeficiency syndrome (AIDS) as the secondary cause, according to a County of Los Angeles Medical Examiner's Office report viewed by E! News. 

The latest update comes after his sister Gris Guerrero, who announced his death Feb. 22, shared that he had been "diagnosed with gastritis months back."

"It was never anything to get that bad," she told Us Weekly in March. "So, we don't know if that was a part of it."

Gris said that based on "the paperwork" their family was provided at the time, Jesus—who worked with stars like Kylie Jenner, Jennifer Lopez and Kali Uchis—had lost 20 pounds before his death.

"We think it could have been something with his stomach," she said, adding that his close loved ones were aware that "he couldn't eat without it being painful."

The 27-year-old admitted that Jesus, 34, often kept his health problems private, even from his own family.

"He didn't tell a lot of people," Gris said. "People who saw him said, 'You need to get rest and help,' and he seemed to believe he could push through it and get better and unfortunately, that wasn't the case."

Just days before Jesus' death, Jennifer shared snaps that included him during a trip to the United Arab Emirates. And she was one of the many who expressed her grief in the time following his death.

"You were gentle and kind and loving, quiet and unassuming, but so powerful, and your presence was felt the minute you walked into any room," Jennifer wrote on Instagram at the time. "You never demanded the spotlight. You never needed to make a sound to be recognized, your heart and your talent did that as effortlessly as your artistry did."

Meanwhile, Kylie described Jesus as "more than" his friend. She emphasized, "He was a light in my life, a source of laughter, comfort, love, and unwavering support. I don't know how I would have made it through the last almost decade without him by my side."

For more tribute to Jesus, keep reading.

"I’ve spent the last few days endlessly staring at photos, watching videos and reading old texts," she captioned an Instagram post featuring photos and videos of the pair. "A thousand moments I had just taken for granted because I just assumed there’d be a thousand more. What a privilege it was to know and love you, Jesus.""Until we dance again…"

"I’m at such a loss for words," the makeup artist shared on Instagram. "From the moment I met Jesus I fell in love with him. You couldn’t help it. He was the absolute kindest most authentic person I have ever met. Anytime I saw his name on a call sheet I would immediately text him with excitement and do a happy dance because I knew it was going to be an amazing day. Not only because of his insane talent but because just simply being in his presence was a gift."

In the comments, Khloe Kardashian responded with a series of emojis, including a broken heart.

"Heartbroken to hear about the passing of @jesushair," the Color Wow director wrote on his Instagram Story. "His talent was undeniable, and his creativity was always ahead of its time. He had a way of making hair an art form, and his passion inspired so many."

"Our hearts will never be the same," the Mane creator captioned her Instagram Story. "Such a loving light and talent we lost too soon."

"2•22, one of Gods most Beautiful Angels has just opened his wings and flew to join him in heaven, and watch over me," the makeup artist, who worked alongside Jesus with friend and client Kylie Jenner, shared on Instagram. "Last night I experienced the most painful, breath taking pain I have ever felt when I found out you left us @jesushair."

"You were my Anchor, my Rock, in every room we made magic in together," Ariel continued. "We in sync on a level that only you and I will ever comprehend. You were a safe haven for me that gave me the push to be the best version of myself in every room we were in together! More than a friend you were my brother."

"I just cannot believe it," the celebrity stylist wrote on her Instagram Story. "The brightest light and kindest soul."

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