The son of an Atlanta-area shooting victim mourned his mom in a heartbreaking GoFundMe, saying she 'dedicated her whole life' to supporting her kids

• The son of an Atlanta shooting victim shared a tribute to his mother on GoFundMe.
• Randy Park said she was one of his "best friends" who raised him by herself.
• Losing her made clear "the amount of hate that exists in our world," he wrote.

A 23-year-old whose mother was killed in the Atlanta-area shootings shared a heartrending tribute to her on GoFundMe, saying she was "one of my best friends."

He said his mother, Hyun Jung Grant, was a single parent who "dedicated her whole life to providing for my brother and I."

Park also described his mother in interviews with The Daily Beast and Korean-language outlet Atlanta K.

Park write that Grant worked at Gold Spa, where a shooter opened fire on Tuesday night, killing her and two others. The shooter killed another five people at other spas.

The Fulton County medical examiner's office confirmed Grant was one of the victims on Thursday.

Losing Grant "has put a new lens on my eyes on the amount of hate that exists in our world," wrote Park.

The man accused of the shooting, Robert Aaron Long, has blamed a sex addiction for the attacks.

But six of the victims were Asian women, and the shooting has spurred a widespread conversation about the role of racism in his motivations. Experts have told Insider it's "impossible to take race out of the equation."

Park wrote that the killing has put him and his brother in a precarious position. He said that he has been advised to move out to save money, and said he would be handling the legal situation, his mother's funeral, and finding a new place all at once.

"As much as I want to grieve and process the reality that she is gone, I have a younger brother to take care of and matters to resolve as a result of this tragedy," Park wrote.

"Frankly, I have no time to grieve for long. I will need to figure out the living situation for my brother and I for the next few months, possibly year."

Park posted the appeal on Thursday night. As of around 9 a.m. Friday morning it had raised $425,000, far in excess of its $20,000 target.

In an update, Park wrote: "I don't know how any word I write here will ever convey how grateful and blessed I am to receive this much support ... To put it bluntly, I can't believe you guys exist."

He added: "My mother can rest easy knowing I have the support of the world with me."