MGN Online

Published: Mar 07, 2014 7:10 AM EST

GAINESVILLE, Fla. (AP) - Authorities say a north Florida teenager is in critical condition after his grandfather shot him during an argument.
    
Alachua County Sheriff's deputies say 72-year-old Ulysses Hayes heard the 16-year-old arguing with his mother about getting out of bed and going to school. Hayes began arguing with the teen and pulled out a gun and shot him.
    
Sheriff's spokesman Art Forgey told the Gainesville Sun (http://bit.ly/1dytnkJ ) there may be a history of the teen abusing his grandfather.
    
Investigators questioned Hayes on Thursday and released him. Forgey says the decision not to arrest the grandfather was based on mitigating circumstances investigators learned during the interviews. The state attorney's office will decided whether to file charges.
    
The teen was in critical condition Thursday night following surgery. He was shot once in the back.
    
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Information from: The Gainesville (Fla.) Sun, http://www.gainesvillesun.com

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