From the article:
Police have arrested the son of a Louisiana sheriff’s deputy as a suspect in connection with three historically black churches that were torched in recent days.
Officials identified the suspect as Holden Matthews, a 21-year-old white male from St. Landry Parish, a small community about an hour west of Baton Rouge.
“I don’t know what this young man’s motive was. I don’t know what was in his heart,” Louisiana Gov. John Bel Edwards said at a news conference Thursday morning. “But I can say it cannot be justified or rationalized. These were evil acts.”
Matthews was charged with state crimes on three counts of simple arson of a religious building, said Louisiana State Fire Marshal H. “Butch” Browning. Each charge has a maximum penalty of 15 years in prison.
Source: Louisiana Black Church Fires: Suspect Arrested In Connection To 3 Cases : NPR
This is a racist hate crime. The end. Period. I notice that is not among the charges.