Jermyn Street theatre, LondonSara Ryan's book about justice for her son, who died in an NHS unit aged 18, has been turned into a play with campaigning passion In a church down the road from this theatre you can see a quilt, a loving tribute to Connor Sparrowhawk, who drowned in a bath in an NHS unit in 2013 aged 18. Each square was made by someone touched by Connor's death and his mother's campaign to uncover what ha…