Montgomery County prosecutors and West Pottsgrove police said 21-year-old Evaughn-Sha Walters of Washington is also charged with vehicular homicide, reckless endangering and other counts.
Authorities allege that he was driving a car that was racing a vehicle Feb. 4 that went out of control on Route 422 and down an embankment near the Schuylkill River, killing 23-year-old Anthony Rodriguez of East Elmhurst, New York and 20-year-old Marissa Kelly of Stroudsburg and her unborn child.
A listed number for Walters couldn't be found Monday and it was unclear whether he had an attorney.
The suspect previously arrested has been identified as 22-year-old Shone Santiago.
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