HOUSTON (AP) — A Louisiana man has pleaded not guilty to extorting money from a Texas A&M University professor about a week before the professor jumped to his death from a campus building in January.

A Houston judge on Tuesday ordered the 37-year-old Metairie, La., man to remain jailed without bond.

Prosecutors say the defendant lured 59-year-old communications professor James Arnt Aune into a sexually explicit online relationship with who he thought was an underage girl.