ba barbie, an officer was disciplined for having blind folded the suspect? >> reporter: that's right. and when the pictures came out early sunday morning, it raised a lot of eyebrows about the treatment and alleged confession that both of the young men apparently gave to investigators. but the investigation is continuing. there are a lot of moving parts. behind me in about an hour, there will be the first official briefing by the arm of the police under which this dead officer served. and they will be telling uts quite a few details. one of them is about the knife. the knife used in this attack was a 7 inch military style knife. they are calling it a trench knife. we haven't seen a picture of that and we may get that in the press briefing. we have also not seen any photos of surveillance footage of the actual attack. but police are saying that these 11 stab wounds remain in a