A man with ties to former New England Patriots tight end Aaron Hernandez visited a Boston courthouse on Thursday after being ordered by a judge to testify before a Massachusetts grand jury. John Alcorn, of Bristol, Conn., arrived at Suffolk Superior Court shortly after 9 a.m., accompanied by his attorney, Matthew Dyer. Dyer declined to comment as he entered the building with his client. Alcorn, 21, is related to Thaddeus Singleton III, the deceased husband of Tanya Singleton, a cousin of Aaron Hernandez, said Bristol Police Lt. Kevin Morrell. Alcorn was also the man nicknamed ''Chicago'' in a Massachusetts state police report as the possible source of a .38-caliber gun seized from a car after an accident in Springfield, Mbutt. on June 21, according to Morrell. Source: Associated Press
