The alleged shooter who wounded Rep. Steve Scalise (R-LA) and at least four others at the Republican congressional baseball practice Wednesday morning has been identified by multiple media outlets as James T. Hodgkinson.

And per a report by the Washington Post’s Robert Costa, Hodgkinson volunteered for Sen. Bernie Sanders (I-VT) during last year’s presidential campaign, according to a fellow volunteer.

Now Sanders has released a statement saying he’s been informed that the alleged shooter “apparently” volunteered for him. The statement continues, “I am sickened by this despicable act.”

Sanders goes on: “I condemn this action in the strongest possible terms. Real change can only come about through nonviolent action, and anything else runs against our most deeply held American values.”

Here’s the statement: