(NewsNation) — The trial of a 75-year-old grandmother accused of a murder-for-hire plot in Florida has become shocking with each passing day, observers say.

Prosecutors say Donna Adelson concocted a scheme in which two hitmen shot her former son-in-law to death in 2014. Wendi, her daughter, testified that her mother hated her ex-husband, Danny Markel.

Donna Adelson denies any involvement in Markel's death. Gigi McKelvey, host of the "Pretty Lies & Alibis" podcast, says that the prosecution doesn't have a "smoking gun" to prove Adelson planned to kill Merkel.

"It's largely circumstantial," she said. "You put the pieces together, you get a big picture. I think it's going to be the same with Wendi, and she is an undoubted co-conspirator."

Donna Adelson trial has serious tension

McKelvey

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