Assuming Craig is a landlord of the offender, if Landlords were responsible for their tenants criminal acts, practically everyone of them would be subject to jail. Every apartment complex in California has at least one illegal drug user and quite often at least one drug dealer. Landlords have no duty to enforce laws on their property. The Landlord's duty is primarily for their tenants immediate safety which is almost always satisfied by not violating any building codes. As long as the Landlord is not in violation of any building codes, they have likely satisfied their duty.
If I were the Landlord in this matter, my defense would be that the lease agreement expressly prevented me from interfering with the tenant's use and enjoyment of the leased property and I feared being liable for trespass and being sued by the tenant were I to fiddle with (and possibly destroy) their electronic equipment. Also, helping out law enforcement has led to the criminal taking revenge on the witness or helper of law enforcement, and perhaps this worman rightfully feard for her personal and family's safety. Also, since the authorities were involved, she arguably did her best to not interfere with their ongoing and exhastive investigation all the while she cooperated to a reasonable extent, but had no duty beyond "reasonable cooperation".