A Tampa woman says she was trying to protect her 7 year old grandson when she wound up shooting him. 

63 year old Linda Maddox had Tyler and his twin brother sleeping in the bed with her when their father left for work.  Cops say the woman placed a chair against the bedroom door for extra protection.

Early Tuesday morning, she heard the chair sliding against the wood floor and, assuming it was an intruder, she grabbed a loaded gun that she keeps next to the bed and fired one shot in the dark. 

The boy received a bullet wound to his upper body and was rushed to the hospital in critical condition. 

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