Riverhead Brother of Hit-And-Run Suspect Found Guilty of Lying to Cops | Sister Jacqueline "Jackie" WalshMiguel Ixpec-Chitay was convicted of making a materially false statement to federal investigators, reports say. Summary:December 23, 2012The brother of a man believed to be responsible for the July hit-and-run that killed a Syosset nun was convicted Wednesday of lying to federal agents about the crime. According to 27East , Miguel Ixpec-Chitay , of Horton Avenue in Riverhead, was convicted of making a materially false statement to U.S. Immigration and Customs Enforcement agents about communicating with his wanted brother, Carlos. , of Horton Avenue in Riverhead, was convicted ofInvestigators discovered over 15 calls were reportedly made between the brothers the night of the hit-and-run, though Miguel Ixpec-Chitay told agents he did not speak to his brother in the weeks following the crime, said 27East. Police believe Ixpec-Chitay's brother, Carlos , is responsible for the death of 59-year-old Sister Jackie Walsh who was fatally struck by a car as she took an evening walk in Water Mill.