MOUNT VERNON - Authorities say that both the suspect and victim in a fatal broad daylight shooting in Mount Vernon are from the Bronx. 

According to police, 35-year-old Kamau Kiarie shot and killed 26-year-old Michael Santiago in the parking lot of an apartment complex on Sheridan and East Lincoln avenues Tuesday afternoon. 

Kiarie has been charged with second-degree murder. He also has prior arrests for menacing and sexual assault. 

Investigators do not believe the shooting was random, and are looking into the relationship between the two men.