The college student's body was found Tuesday.
Jurors were deadlocked on 10 other counts.
Investigators are working to determine why Chris Watts would allegedly kill his wife and children.
Residents of the Upper East Side building are living in fear.
Shanann Watts' Father Sobs as Names of His Daughter and Grandchildren Are Read in Court
Christopher Watts faces nine charges, including several counts of first-degree murder.
Man in Prison for Stabbing Neighbor Charged in Killing of Woman, 60, Who Also Lived Nearby
Belen Perez was found strangled to death in her home in Provo on May 21, 2014.
Patrons Tackle Gunman Outside California Bar: Police
The suspect reportedly fired one round in the air.
Watts faces multiple charges.
'Porch Pirate' Returns Package He Allegedly Stole With Note of Apology
The man said he was dared to swipe the package.
Newly surfaced video shows one of the girls telling her dad she loves him.