Benjamin Keough was just 27 when he took his own life on 12 July, and his sister admitted she was shattered and heartbroken in the wake of his passing.
The Mad Max: Fury Road star is still struggling to come to terms with his loss, and on Monday (07Sep20), she posted an old photo of the pair pulling funny faces on Instagram.
"Two months without you," she wrote in the caption. "I would give anything for 1 more minute with you little brother."
Riley previously remembered her "angel" brother with social media snaps on the one-month anniversary of his death, while showing off a new tattoo of his name, Benjamin Storm, on her collarbone.
Benjamin and Riley are the children of musicians Danny Keough and Lisa Marie Presley, and the grandchildren of Elvis Presley.
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