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A green deer and basketball? I've never seen a clue spread across two sentences; maybe I missed something? Anyway, digging in that direction is pointless... In my humble opinion.
Do you think Yashur revealed himself in this way? Maybe, of course, but we should also consider that the phrase might have slipped out involuntarily.
One last observation. I find the attitude towards Locken amusing, to be honest. Ples linked a clue and made a suggestion about his potential for being a serial killer... And everyone is so confidently asserting that he is a serial killer, it's adorable. I'm even more amused when the supposed serial killer is executed, even though the town has many deaths, but no mafia members have died and don't plan to. Who will maintain the balance, gentlemen? Alright, I need to think a bit more, because right now, it's just sad.