The jilted woman accused of planning the murder of a Dallas pediatric dentist last September was formally added to the FBI's Ten Most Wanted list Wednesday. 

Brenda Delgado is only the ninth woman to make the list since its inception in 1950. Federal investigators told a news conference that they are offering a $100,000 reward for information leading to her capture.

"Delgado’s addition to the list underscores the violent and calculated nature of the crime she’s accused of committing," said FBI Special Agent in Charge Thomas Class Sr.

Delgado, 33, is charged with capital murder and unlawful flight to avoid prosecution in connection with the Sept. 2 death of Dr. Kendra Hatcher. Authorities say Delgado ordered Hatcher's murder because she was jealous of the dentist's relationship with her ex-boyfriend. 

Authorities have already arrested three other people in connection with the killing, including the suspected triggerman. Kristopher Love, arrested last October, has also been charged with capital murder after he allegedly shot Hatcher in the parking garage of her apartment complex.

Delgado, a Mexican citizen, is believed to be hiding somewhere in her home country. Dallas County District Attorney Susan Hawk said Wednesday that by law, Delgado cannot face the death penalty if she is apprehended in Mexico and extradited to the U.S. 

Delgado is described as standing about five feet, five inches tall and weighing approximately 145 pounds. She has black hair and brown eyes and should be considered armed and dangerous. 

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