**Glasgow Warriors hooker Johnny Matthews grabbed a hat-trick during a 40-12 win over Zebre Parma on an emotional night at Scotstoun.** Oli Kebble, Ryan Wilson and Jamie Dobie also crossed as Warriors moved five points behind United Rugby Championship leaders Leinster. Only the width of a post stopped Ross Thompson adding six conversions. Alessandro Fusco and Luca Andreani scored late in each half to give the Italians something to show for their visit. There was a poignant precursor as Warriors paid tribute to former player Federico Aramburu, who was shot dead in Paris a fortnight ago at the age of 42. The former Argentina back played for Glasgow during the 2010-11 season.