Grieving Kaia Gerber is seen with parents Cindy Crawford and Rande for first time since Presley's shock death at 27

Kaia Gerber was seen for the first time with her famous parents Cindy Crawford and dad Rande Gerber as they continue to grieve three weeks after the death of brother and son Presley Gerber at 27. 

Presley died of a suspected overdose after going into cardiac arrest on September 20 while staying at the Santa Monica rehab facility Resolutions Living.

Now just over three weeks later, 25-year-old Kaia looked somber while on an outing with parents Cindy, 60, and Rande, 64, in Los Angeles on Monday. 

The Daily Mail has reached out to representatives for Kaia, Cindy and Rande and has yet to hear back. 

The outing came a day after Kaia emerged publicly while the Daily Mail revealed that she has been disheveled in grief 21 days since her brother passed. 

Presley had checked into the Santa Monica facility Resolutions Living the day before he was found dead on September 20.

Kaia Gerber was seen for the first time with her famous parents Cindy Crawford and dad Rande Gerber as they continue to grieve three weeks after the death of brother and son Presley Gerber at 27

Presley died of a suspected overdose after going into cardiac arrest on September 20 while staying at the Santa Monica rehab facility Resolutions Living

Above, Presley, Kaia, Cindy, and Rande in Los Angeles in May

In footage obtained by TMZ from the night before he died, the model was seen giving a solo tour of the sober home while wearing a white undershirt that showed off his prominent tattoos, a silver chain necklace and a pair of black eyeglasses. 

Presley appeared visibly under the influence in the clip, taken around 10pm, as he stared into the camera with noticeably glazed eyes. Throughout the video, he panned the camera around a bedroom and multiple areas of the residence, appearing to be on his own.

Presley reportedly 'got high' on Saturday afternoon and became concerned he was losing control, insiders claimed to TMZ. His sober coach had called the living facility and asked if he could bring Presley in – though he made it clear that Presley was high on drugs – and the facility's admissions officer reportedly agreed, the outlet reported.

The sober coach had reportedly planned to take Presley to a rehab facility the following Monday but needed a temporary hold for the weekend and ended up leaving him at Resolutions Living, according to insiders. Sources also claimed that Presley continued using drugs inside the sober home.

His remains were 'cremated' just days after his passing at the Rose Family Funeral Home, per a death certificate obtained by TMZ. Crawford and Gerber will reportedly keep their son's ashes at their residence.

A final confirmation of any substances that may have played a role in his death must wait until the Medical Examiner's toxicology report is released.

The Daily Mail previously obtained audio of the 911 emergency dispatch call made from the Santa Monica rehab, in which an automated voice could be heard saying 'cardiac arrest' followed by 'overdose.'

The first call was made on Sunday, September 20 at 9.35am regarding a cardiac arrest, however, just three minutes later it was upgraded to an 'overdose,' then finally at 9.40am the priority was upped once again as it was 'upgraded.'

Now just over three weeks later 25-year-old Kaia looked somber while on an outing with parents Cindy, 60 and Rande, 64, in Los Angeles on Monday

Cindy wore a hat on the outing as she stepped out of a black Range Rover SUV

The patriarch Rande was also seen on the outing

Presley, who started modeling from a young age like his sister, had been open about his decade-long struggle with drug addiction and mental health problems before his death. 

Last November, Presley revealed he had taken a step back from social media to 'take care of my own mental health for a bit.'

One month later, he opened up about his personal life in a candid social media video and started sharing 'Mental Health Mondays' videos on his Instagram. In one, he listed the medication he takes for 'night terrors' and 'panic attacks,' saying his use of medication had been 'fluctuating up and down depending on what's been going on in my life.'

Earlier this year, he posted about having a 'Pre-ibogaine flood dose' at a Mexican treatment clinic, a single, high-dose administration of the naturally occurring psychoactive substance ibogaine that is reported to help with withdrawal symptoms. The high dose is designed to induce a profound 'reset.'

Presley's parents and his sister Kaia praised him for his 'courage' in response to his post about starting the treatment in March.

Crawford commented: 'You are a warrior! Walked thru the fire to find yourself! So proud!' while Kaia added: 'That's my brother I am so damn proud.'

And Kaia wrote: 'I'm so proud of you and your courage. Facing what's hard takes real strength and watching you find your way back to yourself is everything. I love you so much.'

'Kaia is still struggling with the death of her brother as they were extremely close,' a source said

Presley had been open about his decade-long struggle with drug addiction and mental health problems before his death. Source: Instagram/@presleygerber

Presley's death came just weeks after Kaia opened up about the enormous toll her brother's struggles had taken on their famous family.

'When something like that happens in a family, it kind of levels everyone,' Kaia told Vogue.

But for all the concerns for Kaia, our source said: 'Kaia has not had it easy in her 25 years, but she will hang in there, she is a very strong person.'

The Daily Mail has reached out to representatives for Kaia and Crawford for comment.

If you or someone you know is struggling with mental health issues, emotional distress, alcohol or drug use concerns, you can also visit 988lifeline.org. You can also call, text or chat with a counselor by texting 988.