A sentencing date is pending for a Reynoldsburg man who has pleaded guilty to failing to pay income taxes and obstructing a federal investigation. 57-year-old John Gregory ran a firm called Teach Tech, which provided computer training to African-Americans looking for work. Federal prosecutors say Gregory pleaded guilty to giving forged documents to a grand jury investigating a real-estate scheme involving former Columbus nightclub-owner Kevin Hightower. Gregory also pleaded guilty to failing to pay 1.1 million dollars worth of income taxes withheld from workers. Hightower was sentenced to prison in January for stealing money from his father's trust and giving it to Gregory.