It's been half a year since the worst mass killing in Japan's recent history. A man suspected of killing 19 disabled residents of a care facility in Sagamihara, near Tokyo, continues to express disdain toward people with disabilities during investigations.The suspect used to work for the facility. 27-year-old Satoshi Uematsu has been undergoing a psychiatric assessment which will be completed by late February.The incident has left deep emotional scars in many people that are yet to heal.Exactly 6 months after the tragedy, there are still many who visit Yamayuri-en to mourn the victims."I came here asking myself what I can do. It's been half a year since the brutal incident, but I can remember that day like yesterday. Nothing has changed," says one of the visitors."We will never forget our peers. We will never forget the 19 lives that were lost," says another.Families of those killed are still at a loss at how to accept the deaths of their loved ones.Kazuma Otsuki, the head of a group representing the residents' families, spoke to NHK for the first time.