207 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case?
Sheryl Lynn Porter, also known as Sheryl Okoro, was a 25-year-old woman last seen on November 16, 1984, in San Francisco, California. Foul play is suspected in her disappearance, which was later linked to the infamous serial killers Leonard Lake and Charles Ng. Sheryl had reportedly met Lake through an offer of work at a "pot farm" and vanished shortly after. Authorities believe she was held captive, tortured, and murdered by Lake and Ng in a remote bunker they had constructed in the Sierra Neva ...Read More
Last Seen: Nov 16, 1984
Last Seen: Nov 16, 1984
Links to Additional Sources (4)
See any mistakes?Victim Details
Jun 20, 2023
Jun 28, 2023
Sheryl
Porter
65
25
61 inches
125 lbs
White / Caucasian
Female
Nov 16, 1984
San Francisco
California
San Francisco County
No
369
125956
Calaveras County Sheriff's Office
San Andreas
California
Calaveras County
95249
Tim Sturm
Lieutenant
1045 Jeff Tuttle Drive, California
2097546500
County
Law Enforcement
85-003253 & 21-001493
Calaveras County Sheriff's Office
Brown
Blue
Blue
11/23/2025
Area Last Seen:







