Bob Bashara has been called a person of interest in his wife's January murder. However, Gentz has been the only person charged for the murder.

SLIDESHOW: The jail cell Bob Bashara is in

Grosse Pointe Park mother found dead in January

Jane Bashara was found dead in the back of her SUV in a Detroit alley on Jan. 25. She had been reported missing the night before.

Sources say Gentz has told police he was forced to kill the Grosse Pointe Park mother under the order of her husband.

Gentz has been charged with first-degree murder and conspiracy to commit murder.

Who is Joe Gentz?

Gentz is charged with first-degree murder and conspiracy to commit murder in the Grosse Pointe Park mother's death.

He was a handyman for Bob Bashara, helping him with various real estate throughout the metro Detroit area.

WATCH:Local 4 legal expert on what's ahead for Bashara

Watch: Exclusive video of Bob Bashara at Wayne County Jail

Watch: Uncut: Bob Bashara arrested

More: Joe Gentz in more trouble behind bars
More: Bashara murder investigation history