An inquest into her death opened today, hearing Ms Harrison was abroad in the US "when she was fatally shot with a firearm".
Her family said she was "truly thriving in life" - and she had "a huge capacity to love and be loved".
"She was the embodiment of wonderful contradictions; she adored travel and being away, experiencing new places and cultures, yet at the same time, she loved nothing more than snuggling up in her pyjamas with her candles on at home.".
They added she was: "truly thriving in life and although this gives us great comfort, we are utterly heartbroken at the loss of our beautiful, gorgeous Luce".
Following the hearing, Ms Harrison's mother and boyfriend paid tribute to her - in a statement shared by police.
