Question: what episodes of criminal minds did kirsten vangsness write?
Answer: Criminal Minds - "And in the End..." ( ... 
Criminal Minds - "Full-Tilt Boogie" (2018) TV episode (co-written with Erica Messer)
Criminal Minds - "Spencer" (2017) TV episode (co-written with Erica Messer)
Criminal Minds - "A Beautiful Disaster" (2016) TV episode (co-written with Erica Messer)