Authorities say Neftali Feliciano-Perez argued with another man along the 700 block of East Lincoln Highway in Coatesville on Saturday night.
Then, officials say, he pushed the victim into a railing that broke, causing both men to fall.
The victim suffered severe head injuries and later died at the hospital.
Feliciano-Perez remains at Chester County Prison.
He will be charged with 3rd degree murder and involuntary manslaughter.