Meat stealing incident leads to three arrests

Sudbury police have arrested three men who robbed a grocery store in Chelmsford.  The incident started out like a shoplifting case, with one man putting food in a backpack then leaving the store without paying.  Security ran after him but stopped when the man pulled a knife on them and then hopped into a getaway car.  Police found the two accomplices a few hours later and arrested the backpack man the next day.  All three are charged with robbery with a weapon while the man who took the food faces additional charges including two counts of uttering threats.