mazar-i-sharif afghanistan spanish physiotherapist work red cross northern afghan city mazar-i-sharif shoot dead monday apparently hospital patient officials say police say two arrest make investigation underway international committee red cross say lorena enebral perez 38 kill orthopedic rehabilitation center mazar-i-sharif energetic full laughter lorena heart office mazar today hearts break say icrc head delegation afghanistan monica zanarelli perez work afghanistan involve help people include children lose legs arm mostly war learn walk fee sheer jan durani spokesman police chief balkh province say two patients admit hospital one take pistol apparently conceal wheelchair shoot woman men arrest say afghanistan one dangerous countries world aid workers group include icrc often face attack staff afghan foreign perez death follow kill february six icrc staff northern afghanistan attack two afghan employees abduct kidnap afghan staff release six days ago icrc statement say icrc seven rehabilitation center afghanistan manufacture 19,000 artificial limbs per year treat hundreds thousands patients spanish red cross physiotherapist kill afghanistan