MADRID, Rajab 1, 1436, Apr 20, 2015, SPA -- A teacher was killed and four people were slightly wounded in an attack at a high school in Barcelona on Monday, police said after arresting the suspected perpetrator, according to Reuters. A police spokesman said it appeared that the attacker had used a crossbow, although this still had to be confirmed. --SPA 12:51 LOCAL TIME 09:51 GMT www.spa.gov.sa/w