Katherine Russell ` ` is doing everything '' to avoid investigators , lawyer says . Russell saw her husband just before he died , a witness says . " Tsarnaev was arrested for domestic violence a year before marriage . For now , he is the one speaking to the FBI . ` ` ` She said nothing about '' her husband being a suspect , Russell 's lawyer says .
Katherine Russell ` ` is doing everything '' to avoid investigators , lawyer says . Russell saw her husband just before he died , a witness says . " Tsarnaev was arrested for domestic violence a year before marriage . ` ` She said nothing about '' her husband being a suspect , Russell 's lawyer says .