Physical Evidence Scant, Focus Is on Statements in Kayak Case
“One might think that a confession from the defendant’s own mouth would be the best sort of evidence that the prosecution could hope for,” said Stuart P. Green, a law professor at Rutgers University in Newark. “But it’s often not,” he said. “A person who has just suffered the trauma of losing a loved one in such circumstances may be under tremendous stress. She may be confused and easily subject to suggestion.”
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Mr. Portale said after the arraignment that the two separate charges of murder and manslaughter — one intentional and the other reckless — showed that the prosecution lacked a theory of what transpired. “A person can’t have two different mind-sets when they commit the same act,” he said, “so I think it’s a signal.”
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As evidence, prosecutors said that she removed a plug from his kayak, so that it would fill with water. But paddling experts say the type of drainage plug in Mr. Viafore’s kayak, if missing, should not have caused it to flood.
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“In a case where there is little physical evidence, then the prosecutor has to rely on more than motive or state of mind,” said Deborah Gramiccioni, executive director of New York University’s Center on Administration of Criminal Law and a former federal prosecutor. “Statements that speak to a defendant’s state of mind offer relevant information that a jury could consider,” she said. “But without corroborating evidence, those statements present a real uphill battle for prosecutors in general.”
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Then there are the Facebook posts, in which Ms. Graswald is seen days after Mr. Viafore’s disappearance smiling broadly in selfies, playing with her cat, visiting an animal shelter and doing a cartwheel. Whether they will be admissible at trial is uncertain. Jeanine F. Pirro, a former Westchester County district attorney and host of Fox News Channel’s “Justice With Judge Jeanine.” “The prosecution will say it’s inconsistent with the behavior of someone whose fiancé just died. And the defense will say, ‘Wait a minute, maybe she’s just blowing off steam.’ ” Ms. Pirro, who has followed the case, predicted that jurors might find the conflicting details baffling. “It is a somewhat complicated case,” she said. “On the one hand, she’s engaged to be married to this guy and everyone who knows them says they are happy. But then you’ve got a woman saying things that are outrageous.”
That may explain why prosecutors this week were still asking for the public to provide any information about the couple’s relationship.