Police in Scotland are piecing together the facts of what appears to be a horrific crime: Three American siblings—8-year-old twin boys and a 5-year-old girl—were found dead inside an Edinburgh house after a gas explosion, the Daily Mail reports. Police, however, say they all had stab wounds. Investigators are waiting to speak with their mother, California native Theresa Riggi, who is in serious condition after jumping or falling from the building's balcony.
Riggi had been embroiled in a bitter custody dispute with her husband, Pasquale Riggi, who had convinced a judge only 24 hour earlier that the children were in danger. "Our family is struggling to come to terms with the immense and tragic loss of three beautiful children," he said in a statement. Pasquale Riggi is a Colorado native who has worked overseas with Shell Oil for a number of years.
(More Theresa Riggi stories.)