FNC is. They came up with an odd scenario that perhaps the guy left a number, the police called, he didn't answer, the police took control of that line, and now they want HIM to call them.
I'm thinking that this is some plan by the sniper to contact the police without being traced, but I doubt he gave them his number. like I said before, maybe a payphone, perhaps a random number.
Are you the same person who used to chat with us in the Alley about 3 years back?