Authorities in Florida say a 60-year-old woman was arrested recently — more than three decades after she allegedly murdered her son in Nevada.

According to Fox News, Amy Elizabeth Fleming is accused of killing 3-year-old Francillon Pierre in 1986 before reporting him missing and suggesting his father played a role in the disappearance.

In a brief statement by North Las Vegas police officer Eric Leavitt said investigators had “pieced several things together,” resulting in a break in the cold case.

Additional details were not immediately available, but local authorities planned a news conference on the matter to be conducted on Monday, as reported by the Palm Beach Post.

Fleming, known as Amy Luster at the time of Pierre’s disappearance, was a suspect — along with her husband and the boy’s stepfather, Lee Luster — in a child abuse case involving the toddler. They were awaiting trial when the boy vanished on August 2, 1986.

The Lusters were early suspects after Pierre was reported missing but authorities never filed charges against them. They eventually pleaded no contest to the abuse counts and served a five-year probated sentence.

They later moved to Florida, ostensibly to be closer to Haiti, where Fleming said she believed her ex-boyfriend Jeane Pierre took the boy.

“We can’t give out everything until it hits the courts, but more of what happened will become clear at the news conference,” Leavitt told KSNV reporters.

Following her arrest late last month, Fleming was reportedly extradited in Nevada, where she is set to appear in court this week.

[Featured images: Amy Elizabeth Fleming, Palm Beach County Jail/Francillon Pierre, National Center for Missing and Exploited Children]