Jami'an 'yan sanda na musamman sun shiga aikin farautar wani mutum da ba a san ko su wanene ba, wanda ya kai hari da wuka a wani wajen taron jama'a a birnin Solingen da ke yammacin Jamus, inda ya kashe mutane uku tare da jikkata wasu akalla takwas, biyar daga cikinsu sun sami munanan raunuka.