The Avia shoe print that tied a serial killer to his final crime scene

The sole of an Avia athletic shoe left a pattern in the dark.

That pattern turned up at more than one crime scene linked to the Night Stalker.

It was a distinctive tread, the kind of mark investigators could photograph and compare.

The shoe print did not name a suspect.

It connected scenes to each other.

Alongside it, investigators logged ballistics from a .22-caliber firearm and a .380-caliber pistol.

Those were links too.

A .22 here, a .380 there, a shoe print in between.

They spoke to the same intruder moving through different houses, different jurisdictions.

They did not speak his name.

How many scenes held that Avia print?

The record does not establish the specific number.

That would require evidence the files do not supply.

What the record does establish is the print's role: one thread among several, pulled taut across the attacks.

The case broke only later.

A fingerprint lifted from a stolen car used in the escape after a Mission Viejo attack was matched to Richard Ramirez.

That match, processed through the state's automated system, gave the first definitive name.

The shoe print had pointed at a pattern.

The fingerprint pointed at a man.

It is a common shape, a sole pressed into ground.

It is also a piece of a puzzle that long refused to form.

THE NIGHT INTRUDER

The first attack was reported in June 1984.

A home in Los Angeles, entered at night through an unlocked door.

The pattern held through the summer, then the fall, then the next spring.

It is a common shape, a man moving through dark rooms.

By August 1985, the case summary counted a series of home-invasion attacks, rapes, and murders across Los Angeles and the San Francisco Bay Area.

The attacker typically entered homes at night through unlocked doors or windows.

He often shot or bludgeoned male victims.

He sexually assaulted female victims.

The crimes spanned multiple jurisdictions, including Los Angeles, Monterey Park, and San Francisco.

Each jurisdiction worked its own scenes.

Detectives in one city did not know what detectives in another city had found.

The exact number of attacks and victims is not specified in the record.

That number is not established.

The shoe print did not name a suspect.

It connected scenes to each other, but no one was comparing scenes.

A significant mistake early on was the failure to connect the attacks across jurisdictions.

That failure delayed a unified task force.

It is a common shape, a sole pressed into ground.

It is also a piece of a puzzle that long refused to form.

The same man kept moving through unlocked doors.

The same evidence kept turning up in different files.

The same name did not appear anywhere.

THE FINGERPRINT

The turning point came after the August 1985 attack in Mission Viejo.

The attacker fled on foot that night, and he left a stolen car behind.