Post viral videos on social media: Yay. Help cops with the investigation: Nay. Investigators of the train shooting by RPF constable Chetan Kumar Singh have been struggling to get a first-hand description of the bloodbath. But, all eyewitnesses seem to have vanished into thin air, cops told mid-day on Tuesday. So far, the cops said, they have only been able to record statements of those who heard the commotion aboard the Jaipur-Mumbai Central Superfast Express on the morning of Monday.

At least five to six videos, shot by the passengers travelling in the compartment where the shooting happened, went viral on social media soon after. However, 24 hours later, none of these passengers are reachable, cops said. The railway police have prepared a list of passengers from the two coaches and are visiting their homes to record their statements. Many people were found to have left Mumbai, said the sources.