A former Fortune 500 executive is facing a wrongful death lawsuit for fatally crashing into a pregnant woman, her fiance and their fetus in what New Hampshire authorities called a failed suicide attempt.

The Valley News reports (http://bit.ly/1bePBuc) the estate of Amanda Murphy sued Robert Dellinger on Feb. 20, the day after he pleaded guilty to negligent homicide in the deaths of Murphy and Jason Timmons of Wilder, Vermont. Dellinger also pleaded guilty to assault for the death of their fetus.

The lawsuit seeks damages for Dellinger's "wanton, reckless and grossly negligent" conduct. Investigators say Dellinger was trying to kill himself when he drove through the median of Interstate 89 in December 2013.

Dellinger hasn't been served with the suit yet. Dellinger's lawyer said he wasn't attempting suicide, but rather suffering from delirium due to a "toxic regime" of medications.

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Information from: Lebanon Valley News, http://www.vnews.com