BUFFALO, N.Y. (WIVB) — An alleged drunk driver has been accused of killing his passenger in a high speed crash in Buffalo's Riverside neighborhood in July, the Erie County District Attorney's Office said Monday. Alexander Kozak, 28, is accused of driving a modified 1992 Honda Civic at a high rate of speed while under the influence of alcohol when he crashed into a tree on Arthur Street near Tonawanda Street in Buffalo around 10 p.m. on July 20. The passenger, 30-year-old Sommer Lynn Toth, died at the scene. Kozak was taken to ECMC to be treated for injuries. Kozak is charged with second-degree vehicular manslaughter and criminally negligent homicide. If convicted of the highest charge, he faces a maximum of seven years in prison. Prosecutors asked Judge Andrew LoTiempo to remand Kozak, but bail was set at $5,000 cash or $10,000 bond. A return court date has not yet been scheduled. Latest Local News Family loses everything in fire before Xmas Deputies perform life-saving CPR at Bills game Drunk driver accused of killing passenger in high speed crash Water use restricted in Sinclairville Pedestrian hit near Highmark Stadium, North Tonawanda man charged Aidan Joly joined the News 4 staff in 2022. He is a graduate of Canisius College. You can see more of his work here.