Detectives recovered a number of sexually explicit videotapes from the cluttered apartment where Mr. Marcial lived, the police said.
Detectives arrived the next morning to investigate and recovered fingerprints from a glass jar of coins.
Detectives also recovered $1,200 in cash, high-powered heat lamps and other equipment.
Detectives recovered at least one brick at the scene and the police were conducting tests to determine whether it was the murder weapon.
Detectives had not recovered any weapons and had not determined whether there was one gunman or more, according to Captain McCarthy.
Detectives recovered the baby's body, which had been buried in the boyfriend's backyard.
Detectives found the tree and recovered the bullets.
Detectives recovered a knife from the scene, but said Mrs. Alvarez's injuries were caused when her head struck the pavement.
Detectives yesterday recovered the gun used to kill the owner of the Second Avenue Deli on Monday, the police said.
Detectives recovered most of the jewelry.