Best you look up the definition of burglary.
burglary
noun, plural burglaries. Criminal Law.
1.
the felony of breaking into and entering the house of another at night with intent to steal, extended by statute to cover the breaking into and entering of any of various buildings, by night or day.
trespass
noun
1.
Law.
an unlawful act causing injury to the person, property, or rights of another, committed with force or violence, actual or implied.
a wrongful entry upon the lands of another.
the action to recover damages for such an injury.
2.
an encroachment or intrusion.
3.
an offense, sin, or wrong.
According to the article, the door was not locked so there was no breaking into. Second, nothing was stolen. So it still seems more like trespass to me unless there is some funky state definition???
Am I missing something?