KATY, TX -- We're learning new details about what led up to a shooting in Ft. Bend County last week that left a mother and her two daughters dead.The shooting happened Friday afternoon on Remson Hollow Lane in the Katy area. According to Ft. Bend County investigators, Taylor Sheats, 22, and Madison Sheats, 17, were shot and killed by their mother, Christy Sheats, 42. A Fulshear police officer who responded to the shooting fatally shot Christy Sheats.Eyewitness News has confirmed that today was going to be Taylor Sheats' wedding day. On Facebook, her fiance's family member posted, "Y'all were a part of our family and that will never change. The greatest in-laws anyone could ever have, and the sweetest, most wholesome and caring girls in my life. I look up to ya'll so much. Y'all were a light in the midst of this crazy world. We will all love you two until the end of time."We also learned new details about what deputies say happened right before the shooting. According to investigators, Christy Sheats had pulled her daughters and husband, Jason, together for a family meeting.During the meeting, investigators say Christy Sheats held up a gun and shot both girls.Jason and both daughters managed to run outside through the front door. Madison collapsed and died. Jason ran to the end of the cul-de-sac.Taylor ran to the street and investigators say Christy followed, shooting Taylor again. Witnesses say Christy went back into the home to reload and then shot Taylor one more time. Tayor was flown to Memorial Hermann Hospital, where she died.Sources say Jason and Christy Sheats had an embattled relationship. Eyewitness News was first to report that Christy Sheats had a nine-month lease at a Katy apartment from December of 2014 to August 2015.We also learned today that the Ft. Bend County Sheriff's Office has responded to 14 calls for service at the residence since January of 2012.We're getting more insight into who Christy Sheats was. We sat down with her former boss, John Hollis.Hollis said he hired Christy Sheats as a part-time receptionist in January of 2015 but she didn't last long."There were days when she wouldn't come to work and there were days when things didn't add up," said John Hollis, owner of Clear Canvas Laser, a tattoo removal company.Hollis says Sheats painted a different picture on her LinkedIn account. According to Sheats' LinkedIn account Sheats worked at Clear Canvas Laser from January 2014 to current, for a total of two-and-a-half years. She listed her job as a business manager, saying she was in charge of day-to-day operations. However, Hollis says that's not true. Hollis said she was a part-time receptionist and she never worked as a manager.When he saw her LinkedIn account, he said he was slightly surprised."I was slightly surprised. She was a very interesting character and she liked stories to be told the way she liked stories to be told," Hollis said.