Police say 55-year-old Mark Hirshberg is accused of assault and menacing after a 33-year-old homeless man was attacked repeatedly Sunday with the ax in a local park.
The victim was taken to St. Mary's Hospital with serious, but non-life threatening injuries.
According to KJCT-TV, Hirschberg fled on a bicycle and swam a portion of the Colorado River to a small island.
He was apprehended after authorities tracked him down with a boat. The victim was not identified.
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