Widow of fallen NYPD Det. Jason Rivera recalls how she learned of husband's shooting through 'Citizen' app

The grieving widow of slain New York City Police Det. Jason Rivera described through tears the terror-filled moments when she learned through cell phone apps and technology that her husband was one of the officers gunned down by a domestic violence suspect.

Dominique Rivera, left, wife of NYPD Officer Jason Rivera, watches as his casket is loaded into a hearse outside St. Patrick's Cathedral after his funeral service, Friday, Jan. 28, 2022, in New York. (AP Photo/Yuki Iwamura) Dominique Rivera, left, widow of NYPD Det. Jason Rivera, waits to be presented with a flag after Rivera's funeral outside St. Patrick's Cathedral, Friday, Jan. 28, 2022, in New York. (AP Photo/Yuki Iwamura) A priest hugs Dominique Rivera, wife of NYPD Det. Jason Rivera, during funeral services for Rivera, Friday, Jan. 28, 2022, at St. Patrick's Cathedral in New York.  (AP Photo/Mary Altaffer, POOL) Dominique Rivera walks past her husband's casket after eulogizing him during his funeral mass at St. Patricks Cathedral Jan. 28, 2022, in New York. (Mary Altaffer-Pool/Getty Images) Dominique Rivera, widow of fallen NYPD Det. Jason Rivera ( )   (Bloomfield Division of Public Safety via Storyful)   (NYPD Special Ops / Twitter)   (NYPD Special Ops / Twitter) Mourners embrace ahead of a Jan. 28, 2022, funeral service for New York City Police Department (NYPD) Det. Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Carlo Allegri) A New York Police officer holds a photo of Det. Jason Rivera while gathering for Rivera's funeral service, Friday, Jan. 28, 2022, outside St. Patrick's Cathedral in New York. (AP Photo/Yuki Iwamura) Calvin Hunt of Harlem holds a picture of New York City Police Department (NYPD) Det. Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Jeenah Moon) Police officers attend a funeral service for NYPD Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/David 'Dee' Delgado) A police officer reacts during the funeral service for New York City Police Department (NYPD) Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Jeenah Moon) Police officers stand with a 'Blue Lives Matter' flag in the foreground during the funeral service for New York City Police Department (NYPD) Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Jeenah Moon) Law enforcement officers salute during the funeral service for New York City Police Department (NYPD) Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Jeenah Moon) A procession carries the body of NYPD Officer Jason Rivera to a cemetery as people watch from an overpass in Yonkers, N.Y., Friday, Jan. 28, 2022. Rivera and his partner, Officer Wilbert Mora, were fatally wounded when a gunman ambushed them in an apartment as they responded to a family dispute last week. (AP Photo/Seth Wenig) A hearse carries a casket during the funeral service for New York City Police Department (NYPD) Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Jeenah Moon) Funeral procession for NYPD Officer Jason Rivera. (Getty Images) The casket of fallen NYPD Officer Jason Rivera is brought out of St. Patrick's Cathedral during his funeral Jan. 28, 2022, in New York City. The 22-year-old NYPD officer was shot and killed Jan. 21 in Harlem while responding to a domestic disturbance call. Rivera's partner, Officer Wilbert Mora, also died from injuries suffered in the shooting. (Spencer Platt/Getty Images) Thousands of NYPD officers attend the funeral of Officer Jason Rivera at St. Patrick's Cathedral Jan. 28, 2022, in New York City. Rivera, 22, was shot and killed while responding to a domestic violence call last week, and his partner, Officer Wilbert Mora, was critically injured, and died days later. (Tayfun Coskun/Anadolu Agency via Getty Images) Members of New York Police Department attend a funeral service for NYPD Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/David 'Dee' Delgado) Thousands of police officers from around the country gather at St. Patrick's Cathedral to attend the funeral for fallen NYPD Officer Jason Rivera Jan. 28, 2022 in New York City. (Spencer Platt/Getty Images) Members of the New York Police Department arrive to attend a funeral service for NYPD Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/David 'Dee' Delgado) Mourners gather ahead of a funeral service for New York City Police Department Officer Jason Rivera, who was killed in the line of duty while responding to a domestic violence call. (REUTERS/Carlo Allegri)

She was held by another woman as she spoke for about 10 minutes, struggling through tears and a shaky voice at times to finish her sentences.