Sunday, with assistance from Pooler police, Savannah-Chatham police arrested a 16-year-old male, charging him with two counts of aggravated assault for a Dec. 6 shooting on West 39th and Florance streets that injured a 17-year-old man and another shooting two days later on the 100 block of Clearwater Lane that injured an 18-year-old man.The suspect was arrested during a warrant service at his Pooler residence, in which evidence associated with both shootings was recovered.