Las Vegas killer Stephen Paddock blew himself away with a gunshot into the mouth after he slaughtered 58 people in the deadliest mass shooting in modern US history, according to a coroner’s report.

According to Clark County Coroner John Fudenberg, none of the victims killed at an outdoor concert Oct. 1 was trampled to death while trying to escape the festival grounds.

Some survivors have described receiving injuries other than gunfire during their escapes.

Most of those killed died from a single gunshot wound, according to the coroner’s office. Four victims sustained multiple gunshot wounds.

Twenty-one people were shot in the head, 36 died with chest and back wounds and one — Rocio Guillen of Corona, California — died of a gunshot to the leg, according to a chart the coroner released.

Guillen, a 40-year-old mother of four, made it to a hospital with her fiance, Chris Jaksha, just before she died, according to the Las Vegas Review-Journal.

Jennifer Parks, 36, a kindergarten teacher from Palmdale, California, died from multiple gunshot wounds to the head.

The off-duty police officer killed at the festival, Charleston Hartfield, 34, died from a gunshot wound to the chest.

Officials have said more than 500 people were injured when Paddock, 64, a high-stakes video poker gambler, sprayed gunfire from the 32nd floor of the Mandalay Bay Hotel into a crowd of 22,000 people at the Route 91 Harvest Festival below.

When police stormed Paddock’s suite after he stopped firing, they discovered shell casings all over the floor.

“My initial scan, coming in the room with my rifle, is just seeing, I’m seeing one male down, bleeding from the face,” said Officer Matthew Donaldson. “He was not a threat. Kept going, kept going, kept going.”

Federal and local authorities have not said publicly what they think motivated Paddock to amass an arsenal of assault-style weapons and ammo.

With Post wires