Commonwealth v. Seino

**464 On the morning of August 3, 2002, the body of Daniel DeCosta was discovered on a walkway behind the public library in downtown Quincy. The defendant, Carlos A. Seino, was indicted and ultimately convicted by a jury of murder in the first degree on a theory of felony-murder and armed robbery in connection with DeCosta's death. On appeal, the defendant claims that the trial judge committed reversible error by allowing the jury to be exposed to certain inadmissible hearsay and by allowing one of the substitute expert witnesses to testify to a match between the defendant's deoxyribonucleic…