A Tucson man was arrested after police say he used Facebook to try to arrange a sexual encounter with a 13-year-old girl.

The girl’s mom first told police about inappropriate conversations her daughter was having with a man on Facebook on March 24, a Tucson police news release says.

Detectives learned the man was telling the girl he was much younger and that he had arranged to meet the girl for sex acts, promising to pay her.

Alexander Zumot, 24, was arrested April 2, by a team of U.S. marshals when he arrived at a designated meeting place. Zumot was booked into the Pima County jail on suspicion of aggravated luring of a minor for sex, attempted child prostitution and unlawful age mispresentation.

Senior Editor, News, Arizona Daily Star, Tucson, Az.