ST. PETERSBURG, Fla. -

Authorities say a clerk who thought the dead body of a woman was a mannequin placed outside an apartment complex as an April Fools' Day prank enlisted the help of two others to throw the body into a dumpster.

St. Petersburg police reported in a news release that the Peterborough Apartments clerk first spotted the 96-year-old woman's body during a smoke break around 4:30 a.m. Wednesday.

Thinking it was a joke, he returned to work without notifying anyone.

Two hours later, another employee told the clerk about the body, but he insisted it was a prank.

The clerk and a couple delivering newspapers then moved the body to a nearby dumpster.

Finally around 8 p.m., a maintenance worker saw the body in the dumpster and realized it wasn't a mannequin.

Police found a suicide note in the woman's apartment. It appeared she used a stool to jump from the 16th-floor window.