The radio newscaster and her husband were found in the northern city of Mosul dead on Friday. The gunman has kidnapped them three days before.
Iman Youssef Abdullah , who works for a local radio station of President Jalal Talabani's Patriot Union of Kurdistan and her husband Moayad Hamid, the deputy head of the Mosul laborers' union, were found Thursday in their car in Mosul's eastern neighborhood of Tahrir, al-Jubouri said.
They had been shot several times and their bodies were then incinerated in their car, al-Jubouri said.
Her death would put the number of journalists killed in Iraq since the war began at 100, according to figures compiled by the New York-based Committee to Protect Journalists.
On April 5, police in west Baghdad found the bullet-riddled body of Khamael Muhsin, a famous television presenter during Saddam Hussein's rule. She was kidnapped two days earlier.
The same day, Thaer Ahmed, assistant director of Baghdad TV, was killed when a car bomb struck the television offices in Jami'a, in west Baghdad. Twelve people were wounded.
At least 37 media support staffers also have been killed since the U.S.-led invasion, making Iraq the deadliest conflict for the press in recent history, CPJ says. More than 80 percent of all media deaths have been Iraqis working for local and international news outlets.
According to a CPJ research, at least 48 journalists have been abducted since 2004.