An assailant stabbed three people and accosted a fourth in Lafayette Park across from the White House on Tuesday and was in custody, the Secret Service said, according to Reuters. The three who were stabbed were hospitalized with injuries that did not appear to be life threatening, Secret Service spokesman Tom Mazur said. He said the name of the assailant was not yet being released. "It was a random attack," because the victims did not appear to be associated with the man who attacked them, Mazur said.