Alibi information not followed up by defense team

Anthony and Claude Nealy stated that Claude's girlfriend, 'J' stayed at the motel with them that evening. J was their most solid alibi.

Why did the defense not question the police's neglect to interview J?

As a consequence of this, there was no record made on court records that Anthony and Claude Nealy were accompanied by a third person at their motel in Oklahoma.

The Motel receipts provided by Anthony Nealy would have shown that two rooms were booked (one for Anthony and one for Claude and J).

If Anthony and Claude (and even RD, as he claimed) had stayed together at the motel, it would have been very unusual for three males to rent out two separate rooms unless there was the presence of another person there, requiring further privacy i.e a female partner.

Why were the motel records never checked out?