I doubt that these two hackers/terrorists acted alone and that there is a hidden hand operating in the shadows

Hacker Threatened Shooting at Social Media Company, U.S. Says
By William Turton | Bloomberg
August 1, 2019

[snip]

The Seattle woman accused of a massive hack of personal and financial data from Capital One Financial Corporation threatened to shoot up an unnamed California social media company, according to court records.

Paige Thompson, 33, was arrested during a raid of her house Monday morning and charged with illegally accessing Capital One’s files. More than 100 million people were affected by the breach, which included names, dates of birth and about 140,000 Social Security numbers, the bank said.

Federal officials also arrested her landlord, Park Quan, after finding more than a dozen guns and explosive materials in his bedroom, prosecutors said. In arguing that Quan should be detained, prosecutors said late Wednesday that Thompson was the "subject of one or more restraining orders and had made express threats to harm others and herself."