The FBI is offering a $25,000 reward for information leading to the arrest and conviction of Christopher Francisquini.
Francisquini is wanted in the murder of his 11-month-old daughter. She was killed Nov. 18 in Naugatuck.
He was last seen on Quinnipiac Avenue in New Haven.
Francisquini is considered armed, dangerous and mentally unstable.
Anyone with information is asked to contact police.