Is it worth Serving Eviction Notice with only 1 month remaining?

[Ralph Miller]

Hello BP!  I have three college guys living in one of my 3-bedroom condos.  Their lease ends May 31, 2018.

Two of the three tenants paid their rent in April, but one tenant has not (that's $285 worth or rent).  Long story short, the third guy apparently lost his job and he's isolating himself from his two house-mates.  I'm assuming if he didn't pay April, then he probably won't pay May either.  I called him with no avail, and I emailed him with no response.  His roommates have tried to speak to him but also to no avail.

My overarching question is:  Is it worth serving them an Eviction Notice?  Their security deposit is enough for me to claim unpaid rent once they leave next month.  

Any input is greatly appreciated!