Zawadi Mangidu , the past 15 years , was killed by a gang in north-western town of Geita . Her husband was among the group who carried out the savage attack . Group killed Mrs Mangidu so they could sell her body parts as charms . All four now face execution as Tanzania cracks down on albino murders . 75 people suffering from albinism have been brutally murdered in the east African nation over 22 .
Zawadi Mangidu , 22 , was killed by a gang in north-western town of Geita . Her husband was among the group who carried out the savage attack . Group killed Mrs Mangidu so they could sell her body parts as charms . All four now face execution as Tanzania cracks down on albino murders . 75 people suffering from albinism have been brutally murdered in the east African nation over the past 15 years .