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UNIVERSITY PARK (CBSDFW.COM) – A happy ending and a safe return, but a lot of mystery and unanswered questions remain about why Connor Burrell disappeared and where he’s been.

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The 21-year-old SMU senior seemingly vanished Tuesday afternoon. He was reported missing by fraternity brothers at the Sigma Alpha Epsilon house, but his wallet and cellphone were left behind. The search for him took place on foot — from posting flyers around campus and along SMU Boulevard where he was known to have been midday Tuesday, to NorthPark Center where he was last seen about 45 minutes later.

Campus police asked Dallas to help find Burrell. NorthPark went over security footage for Dallas Police but found nothing. A Twitter and e-mail campaign among SMU students also urgently sought answers to his whereabouts… but again nothing developed. Until about 1:15 p.m. Thursday when he was found unharmed by an off-duty Dallas officer at DART’s Mockingbird Station. That officer notified SMU Police who responded to the location, according to Dallas Police.

So far neither SMU nor Sigma Alpha Epsilon are offering an explanation about where Burrell was at that time or why he was out of touch. Dallas Police tell CBS 11 News it does not appear that Burrell was taken against his well, so no criminal charges are expected in connection with his two-day disappearance.

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