Reward offered for information in death of Alexa Bartell

Police investigating rock-throwing attacks on moving vehicles that turned fatal in west metro Denver were stumped and on Friday offered a $17,000 reward for information as they hunt for those responsible for the killing of a 20-year-old woman.

One or more assailants may have attacked more vehicles, in addition to the five attacks documented on Thursday, Jefferson County Sheriff’s Office spokeswoman Jacki Kelley said.

“We have no suspect information. We have no solid leads,” Kelley said.

Late Thursday, investigators reached the owner of a Dodge Ram pickup truck they’d sought and concluded that neither the truck nor the owner was involved.

On Friday, Jefferson County deputies and police in Arvada, Boulder…