1816
On April 1 , 1878 , Sheriff Brady and Deputy Sheriff George Hindman were killed by Billy the Kid and other Regulators in Lincoln , New Mexico .
 Brady, Deputy, Billy the Kid, Lincoln , New Mexico
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Brady, Deputy, Billy the Kid, Lincoln , New Mexico