An American journalist who accused British rocker Liam Gallagher of fathering her daughter has reportedly filed legal documents demanding full custody of the little girl. The former Oasis singer hit headlines over the summer (Jul13) when entertainment writer Liza Ghorbani allegedly filed a $3 million (£2 million) lawsuit at a court in New York demanding child support payments from the star. The court case reportedly triggered the breakdown of Gallagher's marriage to pop star Nicole Appleton, the mother of his 12-year-old son Gene. Ghorbani has now moved to secure full custody of 11-month-old Gemma by filing a petition at Manhattan Supreme Court on Wednesday (27Nov13), according to New York Post gossip column Page Six. She is reportedly suing Gallagher for full custody and child support.