[SubGeniusX]

The really sad thing is that since the suspect was not under arrest, the cop could have, and should have, simply recorded the conversation.

From the Article:
He interviewed Mr. Crespo at the precinct station house following Mr. Crespo’s arrest six days after the shooting.

he was already under arrest...

but yes it should have been recorded... it may very well could have been, but the tape was not turned over, due to the suspect requesting a lawyer and the interrogation continuing w/o one present... (pure spculation, as there is no evedence in the article to support that a recording was made by the police)

[Enterprise]

"At the end of the interrogation, before Mr. Crespo was placed under arrest, the detective allowed him to give his mother his personal possessions, including the MP3 player."

"He interviewed Mr. Crespo at the precinct station house following Mr. Crespo’s arrest six days after the shooting."

There seems to be a contradiction in what is being reported. I am going to guess that he had been arrested and released, and that he came back to the station house for an interview. I don't how to interpret it any other way. If he was in custody they would not have let him take personal possessions with him like an MP3 player. His possessions would still be in his property bag at the jail.