BIG SUR, Monterey County (CBS / AP) — Authorities say a thrill-seeker who parachuted off a bridge overlooking the Pacific likely drowned, as did the man who jumped in to try to save her.

CBS affiliate KION-TV reports that the two BASE jumpers — an acronym for parachuting off buildings, antennas, spans and Earth — have been missing since Saturday morning.

Monterey County Sheriff’s officials say a video from a helmet camera shows Mary Katherine “Katie” Connell, of Ventura, descending 300 feet and landing on Bixby Creek, which feeds into the Pacific. Shortly after the landing, large waves overtake her.

Sheriff Steve Bernal says her companion then jumped off the bridge to help her.

Bernal says the man likely took off his helmet and parachute to rescue her and that’s where the footage ends.

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