This is CCTV image of a suspected terrorist gunman near Chhatrapati Shivaji Terminus or Victoria Terminus railway station.
This picture fits the profile of terrorists described by the witnesses. Automatic rifle carrying young south Asian people, with shoulder bags to hold ammunition and grenades. These terrorists arrived via sea. Authorities have found a sea craft named Kuber abandoned near Mumbai coast. Satellite phones were found in the craft.
A link to Pakistan and Saudi sources is appearing stronger based on early evidence. Intercom and mobile phone communication amongst the terrorists is in Punjabi language, which points to Pakistan.
This terrorist was captured and has been talking to the authorities. More here.