Tenant vacated property without notice

[Jhansi B.]

My friend rented his place a month ago with an agreement that the tenant will pay the security deposit over 6 months. Tenant moved in with first months rent and the rent was due for this month yesterday plus part of security deposit. My friend couldn't get hold of the tenant to ask about the payment so we went by the house today and from front room window we can see he moved all the stuff out. He basically vacated the home without giving a notice

What can my friend do? Techinically tenant still has lease on the house and how can he make sure he is not violating any laws if he tries to rent it out again. What if he can't get hold of tenant ? What are his options? How can he go after the tenant for damages?

Thank you, looking forward to the answers or suggestions.