An Aiken man was charged early Saturday morning in connection with the death of 31-year-old Helen Magee.James Conway Gray, 30, of 1538 Hamilton Drive in Aiken, has been charged with murder.Shortly after midnight, the two got into a verbal altercation at Magee's residence, 145 Barton Brothers Lane, off S.C. Highway 302 near Aiken Electric Cooperative, said Capt. Troy Elwell, the Aiken County Sheriff's Office spokesman.The argument then turned physical, and the suspect strangled the victim, Elwell said.According to Aiken County Coroner Tim Carlton, autopsy results show that Magee died of asphyxiation.Two children younger than 10 witnessed the incident, said Elwell. One of them called 911, saying that their mother was injured.Deputies said they arrived at the residence and found Magee unresponsive, and EMS personnel on the scene were unable to find a pulse.According to the incident report, a witness claimed that she saw the suspect choking Magee and yelling, "I'm gonna break your neck."Two other deputies en route to the residence saw a white male wearing a blue polo shirt, light blue jeans and white shoes walking west on Wagener Road. They stopped him at the entrance of Montmorenci Water District, 2756 Wagener Road, and determined that he was Gray. He told them that he was coming from "down the road," according to the report, acknowledging that he came from Barton Brothers Lane when deputies asked.The incident report states that Gray said, "I did it. Take me to the station, and I will tell you all about it."According to Carlton, Gray has since exercised his right to remain silent.Deputies said while they were at the Montmorenci Water District, they were approached by Jeramy Thomas Markel, who identified himself as the victim's brother. He told them he had been at work and received a phone call saying that his sister had died. According to the report, he said that he was on the way to her residence when he saw deputies and stopped to find out what happened.Gray was arrested and is being held at the Aiken County detention center.The Aiken County Sheriff's Office and the Aiken County Coroner's office are investigating the death.