One of the best short anime series I have ever seen.
ERASED (Boku dake ga Inai Machi) Anime 1st Promo Video & 2nd Visual
Boku Dake ga Inai Machi (Erased)
The scarf Satoru holds was given to him by Hinazuki on a cold night when Satoru walked her home. It has significant meaning to him; it was the last time he saw her before she went missing. Also, throughout the show, the blue and red eyes had significant meaning to me. Every time Isaw someone with red eyes, I thought it was the killer, up until we found out that it was Yashiro.
Fujinuma Satoru & Hinazuki Kayo, Boku dake ga inai machi