A Mankato man is arrested after trying to break into the home of his ex girlfriend on Christmas Eve.23 year old Jonathan Boyd of Mankato was taken into custody after officers with the Mankato Department of public safety found him in the garage of his ex girlfriend's home.The woman and her children were home at the time of the incident and called police when Boyd tried to enter the home.Boyd is now facing charges of first degree burglary, harassment and disorderly conduct.