The heartbroken mum of a young man shot dead last year said "time has stood still" since his murder and his family now "just exists". Sam Rimmer, a 22-year-old mechanic and dad-to-be, was mercilessly shot by masked gunmen while he stood with a group of friends on Lavrock Bank, , on August 16 last year. At around 11.40pm, the balaclava-clad gunmen rode onto the cul-de-sac before firing a towards the group. Sam was fatally hurt - and despite the best efforts of the emergency services - died of his injuries in hospital a short time later. Today, a year on from his murder, his mum Joanne has urged anyone who has held onto information which could help the police's investigation to come forward. In a heartbreaking statement released by , Joanne said: "Since 16 August 2022, time has stood still. Smiles have disappeared, joy is absent and we live each day with a heavy heart. We just exist. My family and I are broken and torn apart by grief. We are unable to move forward in rebuilding our lives without justice for Sam. "I appeal to anyone who has information that will lead to the conviction of Sam's murderers. I am asking you to search your heart and conscience; to speak out and do the right thing. You cannot take a life and escape punishment. These people need to pay for mercilessly taking Sam's life. "They will lose their freedom but their mothers will still be able to see, speak to and hold their sons. I will never see my son, hear his voice or feel his arms hugging me again. There are no words to describe the pain of losing a child. I hope no more families have to go through the hell we are living. "Please come forward and help bring closure for our family. As long as there is breath in my lungs, I will continue to fight this fight until justice prevails." Sam was due to become a dad when he was killed - and in January this year, on his birthday, his mum said: "It brings the family comfort that a part of Sam will live on, however, the devastating reality is baby Sam will never feel his dads’ arms around him or know how it feels to hear his dad’s laughter." Ten people have been arrested so far in connection with the shooting but at this time no one has been charged. The 10 people arrested remain on bail. previously released footage of the riding on electric bikes. Speaking a year on from the incident, DCI McGrath said: "Although we have made 10 arrests across since the murder our enquiries remain ongoing. We believe there are people living in Dingle, and the surrounding area who hold vital information that will help us find anyone responsible for Sam’s death. "We will review any new information you share with us so please contact us immediately if you have anything that could help us bring justice for Sam. If you heard anything, witnessed the shooting one year ago on Tuesday 16 August, and saw the bikes involved at around 11.40pm please get in touch. "Any information passed on to us will be handled with care and sensitivity, and we can put extensive measures in place to protect those brave enough to come forward. Our detectives will fully assess your information and do all we can to trace any suspects. "Please help us give Sam’s family the answers they deserve after such a heart-breaking year without him by reporting any information about that night, no matter how small, to police."