A Good Samaritan was pulled underwater and later found dead after successfully rescuing a young girl from a rip current Friday night. The incident occurred at approximately 7:53 p.m. near 10th Avenue South in Myrtle Beach , after lifeguards had already gone off duty. WHAT’S THE DIFFERENCE BETWEEN RIP CURRENTS, RIP TIDES AND UNDERTOWS? According to authorities, the Good Samaritan managed to get the girl to safety before being pulled underwater by the current . FILE: Rip current flag.