LAWRENCE, Kan. (AP) _ A University of Kansas student is jailed the bloody beating of a Lawrence woman, an attack that a prosecutor calls "horrific.''

Twenty-two-year-old Matthew Jaeger was arrested early Tuesday after police rescued the badly beaten woman from a vehicle. Officers say an ax, a martial arts knife and a Bowie knife were found in the vehicle.

Jaeger is charged with aggravated kidnapping, aggravated battery, aggravated burglary and criminal threat. He's jailed in $850,000 bond.

The woman has undergone two surgeries and more are expected.

Jaeger told the judge at says it was all a "big misunderstanding.''

Police say Jaeger broke into the woman's apartment and fled, holding her captive in his car.

Authorities say the KU senior is trained in Brazilian jiu-jitsu