To be clear, I am not bashing Elliott over this as it is not specific to him.
The fact she was employed by him though will make it nearly impossible to prove or justify trespassing unless she was in the act or process of committing a crime or she broke in or she had been formally terminated prior to that time.
The lawyer should have said "former employer" in his statement even if they fired her after the incident. By saying, "her employer" they basically admitted she was still an employee and at that point, trespassing is going to be nearly impossible to justify without some type of criminal intent or activity taking place.
For example, if you work a M-F 8-5 job but have a key and go to the office at midnight, fall and break your leg, your employer will be liable for it. If you go after hours and do not have a key and you break in, even with the intent to do work you could be considered trespassing.