By Imy Brighty-Potts The little brother of murdered Harmony Montgomery, who was brutally killed by her father, prays every night that his sister will come back to life, his adoptive family has revealed. Blair and Johnathon Miller said the last few weeks have been “unbearable” for their family as Harmony’s, who died age 5, murder trial came to a dramatic climax in New Hampshire. Jurors heard how her father, Adam Montgomery, 33, got angry with the tot in 2019 for wetting herself in a car the family was living in. He lashed out and punched her multiple times, and his estranged wife, Kayla, told t…