Aaron Mahnke

It was March 24th of the same year, mere weeks after the first attack, when he would strike again.

Polly Ann Moore, a 17-year-old girl who worked late nights as a telephone operator, agreed to go on a date with Richard Lanier Griffin, a military vet who had served in the Navy's construction battalions in the South Pacific.

The plan was dinner and a movie, a meal at the Canary Cottage, and a screening of the film Snafu at the theater.

Following the movie, though, they went to West 7th Cafe for a late-night bite, leaving there around 2 a.m.

It was the last time that anyone would see them alive.

Just like the previous victims, Polly and Richard decided to park somewhere secluded to continue their date.

And just like the previous victims, they were confronted by a masked attacker armed with a .32 revolver.

This time, though, instead of knocking out the young man, the killer shot him.

Richard was found kneeling beneath the dashboard with two fatal wounds.

Polly was found in the back seat.

She had also been killed.

While the February attack had seemed chaotic, the victims both had lived to report to the police, after all, this attack suggested a more organized offender, one who had clearly learned from the previous attack, one that had left no witnesses.

But this time, he left evidence behind, that single .32 bullet casing.

The next murder would happen within three weeks, on April 14th of 1946.

Two high school juniors, Betty Jo Booker and Paul Martin, had known each other since they were small children and had been going steady for a while.

That evening, Paul had picked up Betty Jo from the Veterans of Foreign Wars Club, where she played in the band.

When she failed to drop her saxophone off at home, Betty Jo's mother became concerned and notified the police when it started getting late.

As a result, a search was called.

But it was a couple out driving early that found the body on the side of the road.

It was Paul Martin's.