[Wood]

http://www.cnn.com/2014/05/30/us/geo...aid/index.html

A confidential informant hours earlier had purchased methamphetamine at the house, the sheriff says. The informant told police that there were men standing guard outside the home, and it was unclear whether they were armed

Because the suspected drug dealer, Wanis Thonetheva, had a previous weapons charge, officers were issued a "no-knock warrant"

When the SWAT team hit the home's front door with a battering ram, it resisted as if something was up against it, the sheriff said, so one of the officers threw the flash-bang grenade inside the residence.

Once inside the house, the SWAT team realized it was a portable playpen blocking the door, and the flash-bang grenade had landed inside where the 19-month-old was sleeping, the sheriff said.