A judge has denied bail for the man charged with attacking UCD student Natasha McShane and her friend Stacey Jurich in Chicago last Friday.
In refusing bail, the judge said Heriberto Viramontes (30) posed too big a danger.
Mr Viramontes (30) and his girlfriend Marcy Cruz (25) are both charged with armed robbery and aggravated battery.
Ms Cruz remains in custosy ahead of a court hearing today. She faces four charges in connection with the incident.
The court yesterday heard how a distressed Ms Jurich pulled the intravenous tube from her arm, before making her way to Ms McShane's bed to ask her to "come back".
Ms McShane sustained head injuries in the assault after she and Ms Jurich were mugged and struck with a baseball bat.
The 23-year-year old postgraduate exchange student who was studying at the University of Illinois in Chicago, remains in a critical condition in the Northwestern Memorial Hospital where she was transferred.
Ms Jurich’s condition has been upgraded from a serious to a “fair condition”.
Ms Jurich regained consciousness on Saturday and talked to her mother Wendy Gay Van Etten who later told the media that the robber had struck her daughter on the back of the head, causing her to stumble to the ground before striking Ms McShane two or three times on the head before hitting Ms Jurich again as she got up.
Ms McShane, a UCD student, has been studying at the University of Illinois college of urban planning and public affairs since January and had just secured an internship in the US.
She completed her primary degree at Queen’s University in Belfast and completed an MA in urban and regional planning at UCD. In 2008 she was awarded a cross-Border scholarship, organised by Universities Ireland