Searching for clues

"So, what were you doing around 14:00?" Investigator Hais asked one of the students he hadn't interviewed yet.

The student looked at his watch and said, "I was in the gym, training. Jimmy can testify about this; he was with me..." The investigator nodded to the student, who answered almost immediately.

"There was someone else there that day besides Jimmy?" the investigator asked.

"Plenty. The gym tends to become very busy during these hours..." replied the young man standing in front of him as if it had been evident from the beginning.

"Who's Jimmy? A friend or a member here?" asked Detective Hais, looking at the student. "He is a friend of mine. We started training recently since we will go to military school in September..."

"Is this Jimmy's surname Morel, perhaps?" the detective asked.

"Yes, sir..."