State prosecutors tried Wednesday to pick apart the Stand Your Ground defense used by the North Miami woman who has been charged with killing the man suspected of killing her husband.

Janepsy Carballo is charged with killing Ilam Nissim in May 2008, a month after she said he killed her husband and wounded her toddler son. She shot Nissim five times in the back, claiming that he came to her house uninvited and she was afraid of him.

Her self-defense claims began to unravel in 2010 when she bragged to a confidential informant at the pain clinic where she worked that she killed Nissim. The informant was wearing a police wire to investigate an unrelated drug charge at the clinic.

The SWAT team was posted outside the courthouse Monday when the State called the informant to testify, and Carballo herself took the stand to explain how she embellished the story she told her colleague, not realizing that he was wearing a wire.

In the prosecution’s closing statement, assistant state attorney Ansley Peacock said Carballo acted as “the judge, jury and executioner for revenge or whatever other justification she thought she had.”

Judge Beth Bloom said she will take a few weeks to decide if she would grant immunity to the defendant based on the Stand Your Ground statute. If immunity is not granted, Carballo’s case will go to trial before a jury.