Lisa Marie Presley has paid tribute to her late son, Benjamin Keough, on what would've been his 28th birthday. He died earlier this year by suicide and Lisa Marie has been relatively quiet ever since. She finally took to social media to honor her late son. "My beautiful beautiful angel, I worshipped the ground you walked on, on this earth and now in Heaven. My heart and soul went with you. The depth of the pain is suffocating and bottomless without you every moment of every day. I will never be the same. Please wait for me my love," she captions the tweet. It would have been Benjamin Keough's 28th birthday https:\/\/twitter.com\/LisaPresley\/status\/1319032606311239685 "....and hold my hand while I stay to continue to protect and raise your little sisters and to be here for Riley. I know you would want that. Happy Birthday my sweet sweet Boy. You were much to good for this world," she captions the post. RELATED: Photos Show Benjamin Keough\u2019s Resting Place Beside Grandfather Elvis Presley https:\/\/twitter.com\/LisaPresley\/status\/1319032795822497793 Presley is mother to actress\u00a0Riley Keough, 31, and 12-year-old twins Finley Aaron Love Lockwood and Harper Vivienne Ann Lockwood. Riley also paid tribute to her late brother, posting a caption "Happy Birthday beautiful angel," alongside a bunch of photos of them. Priscilla Presley has been heavily involved in the grieving process as well https:\/\/www.instagram.com\/p\/CGnG4WSFGtp\/ Three months ago, Priscilla Presley also made a public statement in light of the tragic news. "These are some of the darkest days of my family\u2019s life. The shock of losing Ben has been devastating. Trying to put all the pieces together of all the possible whys has penetrated my soul. Each day I wake up I pray it will get better," she says in her statement. "Then, I think of my daughter and the pain she is going through as she was a doting mother. Ben\u2019s father, Danny, who is completely lost, as Ben was his only son. Riley, so loving and so close to him; Harper and Finley, who absolutely adored Ben. Navarone, who struggles deeply with loss and death. Rest In Peace Ben, you were loved." https:\/\/www.facebook.com\/ms.priscilla.presley\/posts\/3546807622015747 Prayers for the Presley family and wishing a happy birthday to Benjamin.