Sheriff’s office K-9 Nero truly becomes a ‘rock’ star

Chester County Sheriffs Deputy Matthew ‘Jamie’ Mendenhall is shown on duty with K-9 Nero. WEST CHESTER — Anyone familiar with K-9 Nero, a stately, bomb-sniffing German shepherd, regarded him as a rock star long before he expanded that definition. In early May, Nero and his partner, Chester County Deputy Sheriff Matthew “Jamie” Mendenhall, were participating in a routine training exercise...