Ibrahim Al-Khayyat died after being shot in chest and abdomen. Body carried through Hebron, West Bank's largest city. Israeli soldiers fired on Palestinians during Hebron operation after rocks thrown. Al-Khayyat heading to minimarket when shot. Abdulhalim Hamad died in Silwad raid near Ramallah. Al-Khayyat second Palestinian killed Wednesday. Over 40 Palestinians killed in West Bank this year. UN reports 40+ deaths from Israeli forces. Schoolteacher describes killings as part of broader violence