), (born March 13, 1945) is a former member of the New York Police Department who in 2002 became the first Puerto Rican and the first Hispanic in the history of the NYPD to reach the three-star rank of Chief of Patrol.

[1] Estavillo was born and raised in the sector Hato Rey, a section of San Juan the capital of Puerto Rico.

[1] Estavillo graduated from Bishop Loughlin Memorial High School and was awarded the Puerto Rican Leadership Scholarship, making it possible for him to attend St. Francis College.

[1][3] After three years of service (1964–1967) which included a tour of duty in Vietnam, Estavillo was honorably discharged with the rank of sergeant.

[5] By 1993 he was promoted to Inspector and Deputy Chief, Commanding Officer Fifth Division, covering the Upper West Side of Manhattan.

Estavillo managed the resources to combat crime and support counter terrorism strategies; provided supervision to direct, observe and evaluate performance, equipment and training of personnel.

[1] He is a member of the New York State Association of Chiefs of Police, the American Academy of Professional Law Enforcement, the N.Y.P.D.