Washington man bought gas can and lighter minutes before missing woman's car found on fire: court documents

Steele Barber owner Matt Humphrey blasts Seattle leaders as crime surges, hurting small businesses in the community. 

A Washington man accused of stealing thousands of dollars in jewelry from a Costco store before meeting a woman there who vanished is now charged with trying to kill her son and torching her car in an attempt to hide evidence, court documents show.

Leticia Martinez-Cosman was last seen March 31 at T-Mobile Park with Brett Gitchel, whose past includes numerous car thefts and other property crimes and a pair of domestic assaults.

The Seattle Mariners and stadium security provided video that police said shows the two at the game and leaving together, contradicting his claim that she left with "some guy" she ran into at the park, according to police.

"A day after Leticia was last seen alive with Brett Gitchel at the Mariners game, Brett Gitchel kidnapped her disabled son and attempted to strangle him to unconsciousness," a court filing obtained by Fox News Digital alleges. "Two hours after the kidnapping and assault of her son, Leticia’s car was found burned from a fire started with accelerants in the passenger seat."

SEATTLE WOMAN VANISHES AFTER MARINERS GAME; MAN ARRESTED AND SON ATTACKED BY STRANGER AT 2 A.M., SOURCE SAYS

Leticia Martinez-Cosman, inset, has been missing since she was last seen leaving a Seattle Mariners game March 31. Police later found her car on fire. (Seattle Police Department)

Police said they recovered gas station surveillance video that recorded Gitchel buying a gas can and lighter 15 minutes before Martinez-Cosman's car was found burning on the side of a road nearby.

And cell data allegedly shows him traveling to "a remote mountainous region" before police arrested him and found