A young hacker reeling from the Philando Castile case and the acquittal of the officer who killed him broke into several state databases last year and boasted about his exploits.
"An innocent man is dead, while a guilty man is free," the hacker, known as "Vigilance" tweeted in part last year.
The hacker also taunted authorities, tweeting: "Where am I? Clock is ticking."
But the authorities were on to him. On Tuesday, they identified the alleged anonymous hacker as Cameron T. Crowley, 19, of Lino Lakes, and charged him in federal court.
An investigation by the FBI and Minnesota Bureau of Criminal Apprehension revealed that Crowley went by the nickname "Vigilance," and hacked servers owned by the state and other entities between May 28, 2017, and June 17, 2017, officials said.
Crowley was charged in federal court with three counts of intentional access to a protected computer and one count each of intentional damage to a protected computer and aggravated identity theft.
He made his first appearance Tuesday afternoon, and he remains in custody pending a detention hearing. Crowley was appointed a federal defender and is scheduled for an arraignment Friday.
Crowley transmitted programs, codes and commands to the protected computer servers, the U.S. Attorney's Office said in a news release. The crimes caused damage and cost the state of Minnesota more than $5,000, according to the news release.