A former New York banking executive has been convicted a second time of the 2004 fatal stabbing of his former girlfriend on Nantucket. The Cape Cod Times reported that jurors in Barnstable Superior Court convicted Thomas Toolan III on Thursday of first-degree murder in the death of Elizabeth Lochtefeld. The Supreme Judicial Court threw out his 2007 murder conviction, saying jurors were not properly screened. The case, the first murder trial on Nantucket island in 20 years, drew intense attention from news organizations. Toolan’s defense attorney argued at the retrial on Cape Cod that Toolan’s actions were irrational and that he was not criminally responsible. Prosecutors said Toolan had an elaborate plan to stab Lochtefeld and carried it out.