Just over a year after her 13-year-old son was fatally shot, Remy Lawrence said she still feels her son with her. “Tyler is very much with me. Always, I feel him with me, I know that he’s with me,” she said in an emotional conversation with WBUR’s Radio Boston. “There are days when it feels like I’m still waiting for Tyler to come home. More days than not, I feel like I am waiting.”