BORDER S01E04 - Episode 4

A couple out to "watch the stars" comes across a dead homeless man with a knife stuck in his chest and a "Handle With Care" sticker on him. The detectives arrive, but the coroner is late, leading to testiness. She arrives, and is bumped by a passerby, which ticks her off. Detective Ishihkawa sees the man in the distance and goes to question him. The man says that he was approached by a young man claiming to be with social welfare, who then stabbed him. Just before he died, the young man told him he was a decoy. Det. Ishikawa runs to warn the forensics team, which has lifted the body, A bomb goes off, injuring team members and sending the coroner to the ICU. Who is behind all of this, and what is his grudge with the Police?