Ex-NYPD officer charged in fatal stabbing of Brooklyn runner Katie Suarez

You're learning more about the suspect in the deadly stabbing of a runner in Brooklyn, including his past working at the NYPD. This as prosecutors reveal how they connected him with the murder. Good day, Jessica Formoso is live in Bath Beach, Brooklyn with the latest. Jessica, good morning. Good morning, Tashani and Robert. Disturbing details, including the fact that the suspect was working here at PS 200 as a teacher's aide. We also know that according to authorities, they have surveillance video allegedly tying the suspect to the crime scene. Now go ahead, take a look there at your screen because this here is 27 year old Syed Mohasib in court over the weekend. He has pleaded not guilty to murder. Police say they have connected him to the brutal stabbing. The following death of 28 year old runner Katie Suarez. Prosecutors say Mohasib was caught on surveillance video before and after the deadly attack. Katie Suarez was out for a run along the Shore Parkway Greenway in Bath Beach, Brooklyn, October 30th. She was supposed to meet up with her parents afterward, but when she never showed up, her father went looking for her, finding his daughter. Critically wounded with multiple stab wounds to the neck. She died three days later. The suspect was arrested Saturday. The former NYPD officer, who was working as a New York City public school aide at the time of the alleged murder, is facing second-degree murder, attempting tampering with physical evidence and criminal possession of a weapon. According to the criminal complaint, surveillance video allegedly shows the suspect walking towards the running path before the attack. He then is seen running away momentarily. Moments after investigators say video also captured him running home and then about 15 minutes later coming back outside in his underwear and disposing of items down a garbage chute. Perhaps one of the most disturbing details in the complaint is that he told investigators he went to the bike path carrying a knife because he believed people were going to come and kill his family. But when questioned about the attack, he allegedly denied stabbing anyone telling investigators he sat down. On a bench near the Verrazzano Bridge, covered with blood. In those court documents, he also admitted to police that he ran home, threw away his bloody clothes along with the knife in an attempt to cover it all up. Detectives say he still had bloodstains in his apartment. The NYPD confirms the suspect was an officer in the department for just over a month, starting in October of 2022. In November of that same year, he enlisted in the military. By December, he filed for resignation from the NYPD. He served in the Marines for less than a month before reportedly being discharged on psychological and fitness grounds. In January of 2023, officials say he tries to rejoin the NYPD but is denied. Supervisors noted concerning behavior taking him to the hospital that same day. Still, somehow, authorities say he landed a job with the Department of Education at PS200 here in Brooklyn working as a school aide. One parent shares that she was familiar with both the accused killer Did you ever think anything was off about him or ever get a weird feeling? Honestly, sometimes, you know, I mean, when you see someone that's very quiet, like you just feel like, you know, nervous. I don't want my son to come here anymore. Like, I don't feel comfortable anymore, you know? I was shocked, especially when I saw the girl, because I know her. I know her from TD Bank. She's a lovely girl. I just can't imagine that she's gone. She's always smiling. She's a happy girl. Katie Suarez was a registered organ donor. She saved four lives. The suspect is back in court tomorrow. Now, we did reach out to the Department of Education asking for a statement, a spokesperson telling us that they have suspended the suspect and will move to terminate pending the outcome of the conviction. Tashani, back to you inside. All right, Jessica, thank you for staying on top That's the top of the story.