ST. LOUIS (AP) — A St. Louis man is facing charges and will undergo a psychiatric exam after allegedly threatening to "exterminate" those involved with a magazine for gay, lesbian, bisexual and transgender people.

The St. Louis Post-Dispatch ( ) reports that 40-year-old Darryl L. Jackson is charged with harassment motivated by discrimination to frighten or disturb another person. He is jailed on $10,000 bond. Jackson's attorney declined comment.

Jackson has previous convictions for harassment and was put on probation both times.

Police say several people and organizations had been received threatening and intimidating emails since April. Among those receiving threats was Vital Voice magazine.

Police believe Jackson was using a computer at the Forest Park campus of St. Louis Community College to send the threatening emails.