Nearly one year after a Putnam County mother was killed, investigators still haven’t made an arrest.

PALATKA, Fla. – Human remains found over the weekend in a shallow grave outside Crescent City were identified as those of a missing 20-year-old Putnam County mother, authorities said Tuesday. Putnam County Sheriff’s Office Col. Joseph Wells announced at a news conference Tuesday afternoon that the medical examiner ruled Nyeisha Nelson’s death a homicide, but he did not say how she was killed. According to the Sheriff’s Office, Nelson, a self-employed hairdresser, was reported missing by her family on Wednesday after she had not been seen or heard from for several days. Nelson’s car was found Thursday abandoned in a wooded area off Old U.S. 17 not far from Crescent City. “But the exact motive is not known.”Wells said the investigation suggests that someone may have used Nelson’s car after she disappeared.

CRESCENT CITY, Fla. – An intensified search for a missing 20-year-old Putnam County mother turned up human remains Saturday in a heavily wooded area outside Crescent City, investigators said. The Putnam County Sheriff’s Office has called in the Florida Department of Law Enforcement’s mobile crime lab to help identify the remains, which were found about 8 a.m. Saturday. [Watch the full news conference update below:]Two days after Nelson’s family reported her missing to the Putnam County Sheriff’s Office, the agency first asked the public for help Friday. AdRELATED: Putnam County ramps up search for possibly endangered 20-year-old womanCommunity members gathered off County Road 308 in Crescent City on Saturday to continue the search for Nelson. “If anybody’s seen my baby, can you call please contact the Putnam County Sheriff’s Office or me,” Nelson’s mother, Chasity Nelson, said at a Friday afternoon news conference.

CRESCENT CITY, Fla. – Two days after the family of Nyeisha Nelson reported her missing to the Putnam County Sheriff’s Office, that agency is asking the public for help locating the 20-year-old woman. According to family members, Nelson picked up her daughter on Feb. 10 and the next morning took her child to school. “If anybody’s seen my baby, can you call please contact the Putnam County Sheriff’s Office or me,” Nelson’s mother, Chasity Nelson, said at a Friday afternoon news conference. AdThe Sheriff’s Office told News4Jax there was no sign of foul play at her home and there has been no activity on her bank card. Nelson’s vehicle was found abandoned in a wooded area off Old U.S. 17 not far from Crescent City.