Police say they arrested Codell Loats Sunday morning.
Officer asked for the public's help in catching Loats Saturday, after finding his 56-year-old mother and 59-year-old father in the garage of their home Friday night.
Both had been assaulted and are hospitalized in critical condition.
Loats is in the Arapahoe County jail on $50,000 bond.
The names of the victims have not been released.
Police did not say what charges Loats is facing.
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