MONTE CARLO - A nurse who was recently hired to care for Edmond J. Safra was arrested late Sunday in connection with the billionaire banker's death.Prosecutor Daniel Serdet said at a news conference that Ted Maher, 41, told investigators he set the fatal blaze but had not intended to kill Mr. Safra. He also said he acted alone. Mr. Maher will be charged with arson leading to two deaths, prosecutors said. If convicted, Mr. Maher could receive up to life in prison.

Mr. Maher, the father of three children, had worked for Mr. Safra for five months but had been in Monaco just six weeks. He previously lived in Maine and New York.

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