Grenade may have self-detonated in fatal explosion, police say
Briefly

Police investigating a May 20 grenade blast in Lakes of the Four Seasons have revised their preliminary conclusion as to what happened.Lake County Sheriff's Department spokeswoman Pam Jones in an email Sunday said detectives are now considering whether the device may have self-detonated due to its age or other factors or circumstances that could've caused the grenade to explode.
Read at Chicago Tribune
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