YOUNGSTOWN, Ohio - A Youngstown man convicted of trafficking a 15-year-old girl for sex was given the maximum sentence of 30 years in prison.

In addition, Mahoning County Common Pleas Court Judge Scott Krichbaum ordered that 38-year-old David Kalna must register as a Tier Two sex offender when he completes his sentence.

Kalna was found guilty of two counts of trafficking in persons and compelling prostitution.

Investigators say that between March 2015 and early 2017, Kalna accepted money from a man who wanted to spend time with the fifteen-year-old girl on "dates".

Authorities say that during those "dates" the man compelled the teen to have sex with him several times against her will.

When the teen no longer wanted to spend time with the man on dates, prosecutors say Kalna threatened the girl, who is now 18-years-old.