The corpses at the police station are still covered in bright blood, even some hours later. The blood should have darkened and coagulated by now.
Walter mentions he "saw a child that looked like that once" referencing the movie Deliverance, however the child playing the banjo in Deliverance was not deformed.
The Fringe team is supposed to be just outside of Edina, NY, but, the sheriff's shoulder patch says JONESTOWN CO. Which is the abbreviation for Colorado. However, 'sheriff' is a county officer in the U.S. The sheriff's shoulder patch lettering is all capital letters. As such, "Jonestown" may be referring to a fictional county in the state of New York, rather than a city in the state of Colorado.