Prosecutors are seeking the death penalty for a crazed mom accused of killing both of her ex-husbands on the same day — with the second slaying only discovered when she asked cops which of her murdered exes she was being quizzed about.

Susan Erica Avalon, 51, allegedly gunned down David Scott, 54, and Timothy Fletcher, 55 — who were both fathers to her kids — in a span of hours in December, according to the Tampa Bay Times.

Police had first found her first husband, Scott, shot in the chest near the front door of his home in Bradenton — with him telling them the shooter was “possibly my ex-wife, Susan,” before he died from his wounds.

Their 15-year-old daughter had been home at the time — and also said her mother, “Susan,” might have been involved, according to documents shared by the outlet.

Avalon was tracked by police to her home in Citrus County the next day — where she was seen bleaching the inside of her car.

When cops told her they wanted to talk about her ex-husband, Avalon replied “Which one?” — raising the alarm that she had more than one, police said.

Authorities then raced to Fletcher’s home in Tampa where they found him dead from gunshot wounds, too.

Investigators allege Avalon actually killed Fletcher first around noon on Dec. 17, then drove to Scott’s home and killed him around 3 p.m., officials said.

Although the motive remains unclear, officials said she was embroiled in bitter custody disputes with her former lovers. She has children with both men, according to the Tampa Bay Times.

Avalon is charged with first-degree premeditated murder in connection with Fletcher’s death, and two counts of second-degree murder in connection with Scott’s killing. She has pleaded not guilty to the charges.

The Hillsborough County Sheriff’s Office announced this week it plans to pursue the death penalty against Avalon. She’s due to appear in court next on July 9.

Only two women have been executed in Florida since capital punishment was reinstated in the 1970s — versus 127 men, the Tampa Bay Times noted. Only one of the 250 people currently on death row in the Sunshine State is female.

The request does not mean Avalon will automatically join that rare group, however.

The state’s declaration means it will ask a jury to recommend death if she is convicted of first-degree murder, which her defense can then fight. The jury would then have to vote at least 8-4 to recommend it — which would then typically set off years of appeals, the outlet noted.