One hour before Ivona Jovanovic was shot dead at a Gold Coast home, she had been playing with her dog and watching the sunlight fade over the ocean at Burleigh Beach.
Ms Jovanovic, 27, died in hospital on Sunday night after she was shot in the stomach at the Gold Coast home of her ex-boyfriend, acting Superintendent Brendan Smith said.
Homicide detectives were on Monday questioning her ex-boyfriend over the death.
“He [allegedly] returned to the house probably about one in the morning, and was arrested by the guard on duty," acting Superintendent Smith said.
"He returned back ... it is hard to say why but it certainly was a cold night so I think he had been in nearby bushland.
"He is the ex-boyfriend of the deceased, but they are still very friendly and there is no suggestion at this point of any sort of domestic violence or anything like that."
Acting Superintendent Smith said there were up to five others in the home at the time of the shooting.
"By the time police got there they had all left so we are keen to speak to them because somebody knows something and we need to get to the bottom of it.
"It is disgraceful ... while they called an ambulance there was a lot of first aid that could have been rendered at the time that may or may not have made a difference. We will never know."
Acting Superintendent Smith said the others were not bikies but certainly "hang around the fringes" of outlaw motorcycle gangs.
"That is obviously a line of inquiry but we certainly don't believe there is any suggestion it was bikie related but the people who are involved in [the shooting] have got links to clubs," he said.
“Unfortunately at this point we haven’t been able to recover the weapon so we are keen to get that off the street as well."
Ms Jovanovic had uploaded a photo and videos of her and her dog to her Instagram page about 7.30pm on Sunday.
About 8.30pm, emergency services were called to a home on Renfrew Drive in Highland Park following reports a woman had been shot.
Ms Jovanovic, from the Gold Coast suburb of Labrador, was rushed to Gold Coast University Hospital, but died shortly after arriving.
Friend Madison Gordon told Brisbane Times: "She was truly one of the kindest, sweetest girls I’ve ever known. She had an absolute heart of gold and it breaks my heart this happened to such a good person who would do anything for anyone."
Friends paid tribute to the "beautiful angel" on social media.
"Ivona I never thought last week would be the last time I’d ever speak to you," one friend wrote.
"Any life lost is a tragedy, but the world has lost an amazing woman in such a terrible way.
"You will be missed by so many. Love you girl."
Another woman wrote: "I can’t believe the news I saw this morning, we grew up together and my heart breaks for you and your family and friends ... I hope this person gets what they deserve for what they did to you."