Caleb Harris, a 21-year-old student at Texas A&M University-Corpus Christi, disappeared in the early morning hours of March 4 after he placed an UberEats orderOver three months later, authorities said that human remains were discovered in a wastewater well near his apartment. The following month, officials announced that the remains had been identified as his family said they “all have heavy hearts”Authorities believe Harris might have fallen into an open manhole, Deputy Chief Billy Breedlove told PEOPLE, although his exact manner and cause of death is still unknown The death of Caleb Harris, who went missing over four months ago, was confirmed on July 17 by authorities after human remains were identified as belonging to the 21-year-old college student. While the announcement has provided some closure to his family, many questions remain unanswered, from what his cause of death is to how his remains ended up in a wastewater well. He was last seen in the early morning hours of March 4 n…