A Melbourne woman who shot herself at a US firing range as part of a suicide pact with her twin sister has been released from hospital, according to a report.It comes as video footage airs on US television showing Candice and Kristin Hermeler twins smiling and walking casually into the shooting range on November 15, moments before turning guns on themselves.And further links between the sisters and the Columbine High School massacre - as well as the pair's living arrangements - have also emerged.A sheriff’s department report states the 29-year-old sisters had contacted Melbourne lawyer Ken Hanlon by email to discuss their wills, the Denver Post reports.Kristin, who died in the shooting, had named Candice as executor of her will, which she had taken with her to Colorado.Candice was today discharged from the Swedish Medical Centre in Denver, Colorado where she underwent several operations after the shooting at the Family Shooting Centre last week.Hospital spokeswoman Deborah Gosling told the Denver Post that Candice had been listed in a serious but stable condition before she was discharged on Wednesday morning, US time.There was no indication of when Candice and parents Ernest and Kelsay Hermeler might return to Melbourne.The sisters were on three-month sabbaticals from their jobs in Australia, according to Patty Walsh, the general manager at La Quinta Inn where the twins were staying before the shooting.Ms Walsh told the Denver Post that one twin was a school administrator and the other was a business administrator.They intended to stay in the US until their cultural visas expired, when they planned to travel to Canada.The women rented separate rooms next door to each other and often came and went separately from the hotel in the month before the shooting.Each would come down separately for breakfast each day about 10am.They shopped at Whole Foods and ate meals in their rooms, which contained refrigerators and microwave ovens.Investigators found several personal documents in their belongings including birth certificates, tax identification and school diplomas, the Denver Post reported.In the chilling video footage released yesterday, the twins are shown at the gun range. They hire small-calibre weapons and practise for about 80 minutes before switching shooting stalls to move away from a group of men with bigger guns next to them.The surveillance camera footage, obtained by a local TV station under freedom-of-information law, stops a moment after they both walk forward into the stall and does not show the moment they fall backwards, almost simultaneously, having shot themselves in the head.At the same time, more links were revealed with the Columbine massacre, which occurred nearby 11 years ago, including a letter found in the sisters' luggage from the family of one of the 1999 rampage killers at a US high school.Police reportedly found a letter in the sisters' luggage from the family of one of the killers in the massacre. A copy of a magazine cover about Columbine shooters Eric Harris and Dylan Klebold was found earlier in their hotel room, while it emerged at the weekend that Kristin Hermeler had written to a Columbine pupil bullied by Harris.On Tuesday, a TV station cited the police report as saying that letters from Klebold's family had been found with the luggage, as well as a letter from the family of a Columbine murder victim, Corey DePooter.American investigators have conceded they will probably never know why the twins shot themselves, after deciding not to re-interview the sole survivor.The twins' parents arrived in Denver last week and have asked for privacy.With AFPFor help or information visit beyondblue.org.au, or call Suicide Helpline Victoria on 1300 651 251 or Lifeline on 131 114. - with JARED LYNCH