Tyler Flach Convicted In Teen's Stabbing Death Near Nassau High School

MINEOLA, NY — After deliberating to start a sixth day, a jury found Tyler Flach guilty of second-degree murder.

Flach, 21, of Lido Beach, was on trial for a 2019 stabbing death of 16-year-old Khaseen Morris, outside Oceanside High School, where Morris was a student.

Jurors also convicted Flach of first-degree gang assault and two misdemeanor crimes: third-degree assault and fourth-degree criminal possession of a weapon.

The jury began deliberating Flach's fate Sept. 25.

Morris' sister said Flach "went there intentionally to murder my brother" after the verdict was announced Tuesday morning." Keyanna Morris also said, "You got what you deserve."

Nassau County District Attorney Anne Donnelly said in a statement:

"Khaseen Morris was a bright, funny and energetic young man who, at only 16, had his entire life in front him. Morris recently moved to the Oceanside area and had attended his new high school for only ten days when Tyler Flach – enraged that Morris had walked a girl home from school – deliberately attacked Morris with a gang of seven other defendants. The defendant intentionally stabbed Morris in the chest, piercing his heart. Despite the best efforts of trauma doctors, Morris lost his life later that night. We stand with the Morris family and all of Khaseen’s friends as they continue to mourn his senseless loss."

Flach's attorney Edward Sapone had pushed for second-degree manslaughter and second-degree gang assault in his closing argument, according to Newsday.

Testimony indicated the deadly altercation was started after friction with the jealous ex-boyfriend of a girl Morris walked home from a party, Newsday said.

The second-degree murder verdict carries a 25-years-to-life sentence. Flach is expected to be sentenced Dec. 14, prosecutors said.