Kayla lived in Midtown all her life, while there was a Midtown to live in. This means that, if your character is a New York native (or has been here a while), they may have met. She also attended Hunter College, a Midtown campus of the City University of New York, and graduated in 2005 with a nursing degree; this is another possible point for collision. Finally, Kayla worked at a clinic until the day of the bomb — after which she joined the ranks of Midtown's refugees, which opens up public-service avenues of contact. And she's still there, two years later.
I will quite happily take just about any excuses for interconnection and character development. I also have no compunctions about throwing Kayla into whatever trouble is available (as is true for all of my characters). Furthermore, because Kayla is on-camera while Tamara is off, she might just have a finite lifespan. It will all depend on what takes place in the next two months (so get to know her while she's here).
The fishing commences! Who'll come play?