People Magazine Investigates S9E5 — The Serial Killer Who Only Killed Once

7.4

People Magazine Investigates•Season 9•Episode 5

The Serial Killer Who Only Killed Once

7.4/10 · 36 votesFeb 16, 202643 min

Ranked #7 of 12 in Season 9•matches the season avg

Discussion

The weekend before Thanksgiving 1994, a killer savagely slays Robin Lawrence at home while her child is asleep. A relentless investigation circles her husband, until a drop of blood unlocks the mystery of Robin's murder and leads to a shocking confession.

Previous episodeE4 · Playing with Fire Next episodeE6 · Looking for Angela

Seasons9

All 1 2 3 4 5 6 7 8 9

Season 9 Episodes12

E1 7.4

Vanished in the Heartland

E2 7.5

Death in Hell's Kitchen

E3 6.6

Sex House Homicide

E4 7.5

Playing with Fire

E5 7.4Now viewing

The Serial Killer Who Only Killed Once

Looking for Angela

The Girl on the Bike

The Final Cut

Love, Lies, and Lust

Deadly Ride

The Truth is in the Dirt

No image

E12 7.4

Where is Judith?

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Episode Summary

"The Serial Killer Who Only Killed Once" is episode 5 of People Magazine Investigates season 9. It scored 7.4/10 from 36 votes, ranking #7 of 12 episodes this season (season average 7.4). It aired on February 16, 2026.

Next: E6 · Looking for Angela Best of Season 9