Jurors in Allegheny County convicted 42-year-old Robert Abrams on Tuesday of first-degree murder, arson, and reckless endangerment.
Authorities said Abrams beat 44-year-old Jeanette Abrams with a hammer and stabbed her in their South Fayette Township home in April 2010, then set fire to the house and jumped out a window.
Police said the two had argued over the late hour of the Penguins' triple-overtime playoff loss to the Ottawa Senators in Game 5 of their first-round matchup.
Abrams faces a mandatory term of life in prison without possibility of parole. Common Pleas Judge Donald Machen said sentencing would be in 90 days.