Dismembered body with El Salvador keychain? That certainly seems to point to MS-13.
"The FBI in Maryland is calling on the public to help identify a woman whose dismembered body was found by hikers over the weekend in Catoctin Mountain Park in Frederick County. In a news release, the FBI Baltimore Field Office said the hikers stumbled over a portion of the woman’s body Saturday in the 5,000-acre national park, which is in Thurmont, Maryland. Authorities said the woman had long, dark hair with braids. She was wearing a black track suit, a wrist guard and red Nike shoes. She was found with a Puma handbag and a set of keys with an El Salvador keychain.
The cause of the woman’s death is still pending an autopsy. Based on the on the body’s condition, it’s unclear how long the woman’s body was in the woods, authorities said."
https://wtop.com/maryland/2021/06/fbi-needs-help-iding-womans-dismembered-body-found-in-marylands-catoctin-mountain-park/