Renato Seabra, the alleged killer of Portuguese gay journalist Carlos Castro, has asked a judge to toss out his murder confession, the New York Post reported.

In defense papers filed Friday, lawyer David Touger argued that Seabra's confession should be tossed on the grounds that nobody witnessed Castro's January 7 murder in the Inter-Continental New York Times Square Hotel room that Castro and Seabra shared.

“There were no eye-witnesses to the crime nor any statements or witnesses accusing the defendant of the crime at the time he was taken into custody and questioned,” Touger wrote.

Seabra reportedly confessed to officials that he killed Castro in a fit of rage. The 21-year-old fashion model has been accused of bludgeoning to death and castrating with a wine corkscrew the 65-year-old Castro as the men vacationed over the New Year holiday.

Seabra has not discussed whether he was romantically involved with Castro, as friends have said and Facebook postings suggest. His mother, however, insists her son is not gay.

Touger added that Seabra has yet to decide whether to pursue a psychiatric defense. He has until April 8 to decide.

Seabra earned fame last year on the Portuguese reality talent contest A Procura Do Sonho, or Pursuit of a Dream. He didn't win the contest but was signed to a modeling contract.

Castro had written articles and books about fashion and was a vocal gay rights advocate.