Ka taƙaita labarin:  (CNN) 'Yan sandan Rasha sun yi hanzarin kama mutane biyar da ake zargi, dukkansu Chechens, a kisan da aka yi wa 'yan adawa Boris Nemtsov. Sun yi kokarin kama wani mutum na shida da ake zargi, amma an bayar da rahoton cewa ya jefa gurneti a kan jami'an da suka kama shi sannan ya tayar da kansa. Duk da haka wannan saurin ya tayar da ƙarin tambayoyi game da wanda yake son Nemtsov ya mutu - kuma me ya sa? Ka'idojin makirci suna da yawa, amma har yanzu, babu wanda ya yi kama da cikakkiyar tabbaci. Wasu 'yan adawar Rasha - da 'yar Nemtsov - sun gamsu da cewa gwamnatin Rasha ce ke bayan kisan Nemtsov. Amma me ya sa? Kuma me ya sa yanzu? Nemtsov, mai shekaru 55, ya kasance shugaban 'yan adawa na tsawon shekaru kuma kwanan nan ya kasance' yan adawa matasa kamar Alexey Navalny. Don haka kashe shi yanzu ba shi da ma'ana. Wasu daga cikin magoya bayan Nemtsov sun yi iƙirarin cewa ya zama babbar barazana ga Kremlin, yana nuna bayanan da ake zargin yana ganowa game da rawar soja na Rasha a Ukraine wanda zai iya lalata da'awar Kremlin cewa dakarunta da ke yaƙi a Ukraine sun kasance "masu sa kai" ne kawai. Amma wasan kwaikwayon kisan - an harbe shi a baya a kan sanannen gada na Moscow a kan Red Square da Kremlin, inda Putin ke da ofishinsa - ya zama kamar ma a bayyane yake. Kuma ta yaya daidai yake taimaka wa Putin ya zama kamar mai kisan kai? Wasu 'yan siyasar Rasha da kuma kafofin watsa labarai na kusa da Kremlin sun zargi cewa abokan gaba na Putin a Yamma sun shirya kisan don lalata hoton Shugaban Rasha da kuma tayar da yakin basasa a Rasha. Amma me ya sa Washington za ta so ta hallaka wani wanda ke goyon bayan dimokiradiyya kuma wanda ke da abokantaka da Amurka? (Masu ra'ayin maƙarƙashiya sun amsa: don ƙirƙirar "ɗan rago na hadaya" kuma su ɗora alhakin kisan akan Putin.) • Chechens ne. A nan, al'amarin ya daɗa rikitarwa. Babban wanda ake zargi, Zaur Dadayev, an ba da rahoton cewa da farko ya yarda cewa yana da hannu a harbin. Amma sai, kafofin watsa labarai na Rasha suka ruwaito, ya musanta hannu. Jami'an Rasha sun yi zargin cewa Dadayev, tsohon jami'in tsaro...
An kashe shugaban adawa na Rasha Boris Nemtsov a watan da ya gabata. Jill Dougherty: Ra'ayoyin makirci game da kisan suna da yawa, amma babu wanda ya tabbatar da hakan.