It had been 6 months since you left for America. You was only meant of been gone for 3 month's. 

Jonghyun was lonely since his boyfriend had go away on an exchange. He missed him dearly. On a nightout with Taemin, Minho, Onew and Joon, celebrating the younger two's engagment. Walking home he was about to come across the shocking and most heartbreaking thing of his life