SCHENECTADY, N.Y. – There has been a breakthrough in two Schenectady shootings. Police have made separate arrests with the help of state and federal investigators.

Kirel Prince, 17, was arrested Wednesday and charged with two counts of attempted murder in connection with the June 23rd shooting of Nasjarah Pulliam, 11, and his brother, Shaune Daniels, 18, near Jerry Burrell Park. Pulliam was struck in the head and remains in critical condition at Albany Med. Daniels was shot in the back, but was recently released from the hospital.

Police still aren't sure about a motive.

Prince, who's from Schenectady, also faces one count of criminal possession of a weapon after police say he fired a gun Wednesday on Schenectady Street.

In the second arrest, Michael Capers, 16, also of Schenectady, has been charged with two counts of second degree murder for his alleged role in the March 26th shooting deaths of Alfonso Pittman, 17, and Virgil Terry, 21, on Hulett Street.

This marks the third arrest in that case. Police already charged Deshaun Terry and Jalil Miles with second degree murder.

Prince and Capers are in jail awaiting arraignment. Authorities say the roundup was part of a joint effort between Schenectady Detectives, the State Police major crimes unit and the U.S. Marshall Service.

Both investigations are ongoing, but these latest arrests have police a few steps closer to closing them.