TRENTON, N.J. – The half-brother of Mayor Tony Mack was arrested yesterday by the Mercer County Prosecutor’s Office for allegedly running a plumbing company and using city equipment while on duty as top official of the city’s controversial Water Works, according to reports.

Stanley “Muscles’’ Davis, 49, was arrested at the Trenton Water Works, along with another worker, who was also charged for taking part in the alleged scheme.