Nikki Garcia's life changed in an instant after husband Artem Chigvintsev's arrest, but she has a 4-year-old son to focus on—and twin sister Brie Garcia has her back, as always.

Artem Chigvintsev said his priority is his son Matteo in a lengthy statement following news he would not be criminally charged after his Aug. 29 arrest. In an exclusive statement to PEOPLE, his lawyer claimed he was not the "primary aggressor" in the domestic violence incident involving Nikki Garcia and has seen his son regularly since.