The PSNI has released CCTV footage in a bid to identify Lyra McKee's killer.
The 29 year old journalist was shot dead during violent clashes in Derry city last night.
It happened after police raided a number of houses in the Creggan area.
Detective Superintendent Jason Murphy said:
"We are issuing cctv from the incident which shows Lyra in the crowd. The footage also shows the gunman at the corner and an individual picking up something from the ground on the same corner. We are releasing this to encourage anyone with information to make contact with us."
"I cannot stress enough how important it is that people who were in the area last night and who recorded video and took photos share what they have with us via our Major Incident Public Portal."
