The wife of the gunman who killed 49 people at a gay nightclub in Orlando, Florida, appeared in court on Tuesday.

The FBI have arrested Noor Salman in connection with the mass shooting of the Pulse nightclub in Orlando, according to the reports.

The murky picture of Orlando gunman Omar Mateen grew more complex Tuesday with word that the FBI is investigating whether he had been a regular at the gay dance club he attacked and had been leading a secret life as a gay man.