One of the factors was him walking into frame of a taping of Curb your Enthusiasm. The main factor was his cellphone placing him at that location after answering a call that pinged off a tower near the stadium 20mins before the murder which was 20 miles away. There was also footage from the stadium that showed a person in his seat, but resolution was not good enough to be dismissed from that alone. Even the shows footage did not clear him from charges, it was the cellphone location data.
The real tragedy was the clerical error:
"Due to a clerical error, he had to report back to county jail two days later."
On the positive: "In 2007, Juan received $320,000 in a settlement of his civil lawsuit against the LAPD and the city of Los Angeles for false imprisonment, misconduct and defamation."