Irene Gakwa was 32 years old who was born and raised just outside Nairobi, Kenya, in a close and supportive household. She was the youngest of three children and the only daughter of her parents, Francis Kambo and his wife. Her family described her as exceptionally shy, introverted, patient, and gentle. Her father recalls that she spent so much time inside her room that they occasionally had to remind her to go outside for sunlight. From a young age, Irene showed a deep sense of empathy. If she noticed a local family struggling to feed their children, she would ask her father to step in and help them. In May 2019, Irene emigrated from Kenya to the United States. Her primary goal was to launch a career in medicine by becoming a nurse. Because she was introverted, her parents initially worried about how she would adapt to a distant country. They ultimately supported the move because her two older brothers, Chris Munga and Kennedy Wainaina, were already living in Meridian, Idaho (near Boise). Irene moved in with her brother Chris and his wife, Gyoice Abatey. She attended classes at the College of Western Idaho and did well academically. Her family noted that it was wonderful to see her slowly step out of her shell, let loose, and form a network of local friends. Irene was highly focused on her goal of becoming a nurse. She spent much of her week attending classes at the College of Western Idaho and studying at home. True to her introverted nature, she preferred staying indoors, loved cooking traditional Kenyan meals, drinking hot tea, and watching movies rather than going out to clubs or large social gatherings. Irene maintained an incredibly close relationship with her parents, calling them via WhatsApp almost every single day to chat, joke, and share updates from the U.S.. She spent nearly every weekend hanging out with her brothers and their families until she met Nathan Hightman online in the summer of 2019, after which she gradually became more isolated from her family members. Irene lifestyle changed drastically in July 2021 when she secretly moved with Hightman to Gillette, Wyoming. She did not tell her brothers about the move beforehand, which was completely out of character for her. Nathan Hightman was a tech-savvy homebody, born in California and graduated from Las Plumas High School. When he was in his early 20s, his mother was murdered at her home by her estranged ex-husband. An estranged stepsister later described him during his childhood as an intelligent, quiet boy who spent nearly all of his time tethered to his computer. His resume claimed he earned a Bachelor of Science degree in Economics from the University of North Carolina in 2006. However, investigative journalists discovered that none of the UNC campuses had records of his graduation or enrollment. His early career consisted of customer service roles for Xerox and a stint at T-Mobile, and also claimed to have co-owned a small computer design business called Advance Systems. After moving from Idaho to Gillette, Wyoming, bought a modest three-bedroom house on Pathfinder Circle and worked from home doing remote tech support for DirecTV. A former coworker who briefly dated Hightman described him as an introverted man who lived in a "rich fantasy life". While dating Irene, he actively posted classified ads on Reddit seeking other girlfriends. Hightman was always distant, cold, and highly controlling. He orchestrated the couple's sudden move from Idaho to a harsh, cold climate in Wyoming, where Irene knew no one. In Wyoming, Irene became physically isolated from her family support system. She no longer had her brothers nearby. Her lifestyle grew increasingly restricted. Investigators later revealed that Hightman controlled her digital access, eventually deleting her social media accounts and blocking her ability to communicate freely with the outside world.