A known white supremacist has been arrested following a shooting spree Wednesday in Mesa, Arizona. A police spokesperson said one person was killed and five others were wounded before the suspect was detained.

Esteban Flores: “The suspect, who is — who we believe is responsible for the incident, has been taken into custody without major incident. He was tased during the in-custody. And at this time, we believe he is responsible for each and every one of these shootings. He was taken into custody in the 1700 block of West Emelita here in Mesa. Well, we do have one deceased. The other five have been treated at hospitals; one of them is in critical condition with, I believe, multiple gunshot wounds, and he is still being treated.”

The suspect has been identified as 41-year-old Ryan Elliott Giroux. The Southern Poverty Law Center says Giroux has belonged to skinhead and white supremacist groups.