DA's Office: Missing Buffalo State student Saniyya Dennis presumed to have taken her own life The Dennis Family and last updated 2021-05-06 11:37:47-04 BUFFALO, N.Y. (WKBW) â Missing Buffalo State College student Saniyya Dennis is presumed to have taken her own life, Erie County District Attorney John Flynn reported in a news conference Thursday morning. Dennis, 19, has been missing since April 24. Her cell phone last pinged on Goat Island in Niagara Falls around 1:23 a.m. April 25. Police, loved ones and volunteers have spent the past 11 days searching for the sophomore honors student from The Bronx. The Erie County District Attorney's Office partnered with University Police at Buffalo State this week to lead the search for Dennis. Her family met with the DA Wednesday night.