COLORADO SPRINGS, Colo. -

Glass sits in the parking lot of the Westview Apartments in Colorado Springs, three stories down and several yards out from the windows it was blasted from.

“It was like a shotgun blast…BOOM!” said downstairs neighbor Michael Schillingburg.

“It rocked the whole building,” said next door neighbor Theresa Hosford.  “The wall that’s between the two apartments, my husband said he swore he saw it like bow out and then go back in when the boom happened.”

It’s a type of explosion police are warning will become more and more common.  According to Colorado Springs PD, 51-year-old Lee Brown was trying to make butane hash oil, a high potency extract of marijuana, using butane fuel.

Brown was arrested on several charges including suspicion of unlawful possession and manufacturing of a controlled substance and reckless endangerment.

“They don’t know what they’re doing.  If you don’t know what you’re doing then why do it?” Schillingburg said.

“Putting other people’s lives at risk just so you can have something you want is selfish,” Hosford said.