A 19 year old Danbury man has been arrested in connection with a deadly crash in Newtown that killed 19 year old Mary Cordero back in August. Police say Alexis Salazar turned himself in this week on charges including first degree manslaughter, tampering with evidence, and multiple counts of assault and reckless endangerment. Investigators say Salazar was driving a 2017 Ford Mustang at a high rate of speed on Berkshire Road when he lost control and hit a tree, killing Cordero and seriously injuring two others. Salazar was released after posting a $300,000 bond.