Definition: You will be given three sentences. Read them, then identify a noun phrase (person, place, or thing) or event that is shared between all three sentences. As the output, write the span of the text corresponding to that phrase in each sentence. Keep the order of the sentences, that is, your answer should look like: 1: *a phras from sentence 1e* 2: *a phras from sentence 2* 3: *a phrase from sentence 3*
Input: 1: Authorities have stepped up patrols in the neighborhood where Ahmed Al-Jumaili lived -- and died -- in their effort to find out who killed the 36-year-old early Thursday , as he and his brother stood in the parking lot of his apartment complex watching the snow . 2: Cotner said police are conducting tests to find out whether more than one rifle was used in the shooting , but he said he could not reveal the make or model of the weapon . 3: Dallas police say Ahmed Al-Jumaili was killed by shot from a rifle , but they are n't revealing what type .

1: Authorities 2: police 3: Dallas police