Anna Neistat : Defectors say Syrian military told them to use ` ` heavy shooting '' in the attack . She says al - Assad must take responsibility for killings , torture ##s by defectors . We 've spoken to hundreds of Syrians with firsthand knowledge of abuses . She says Russia has helped with Security Council action . Neistat : Syria must face arms embargo , sanctions , referral to International Criminal Court .
Anna Neistat : Defectors say Syrian military told them to use ` ` heavy shooting '' in the attack . She says al - Assad must take responsibility for killings , torture ##s by defectors . She says Russia has helped with Security Council action . Neistat : Syria must face arms embargo , sanctions , referral to International Criminal Court .