Brian Isaack Clyde graduated in May from Del Mar College with an Associate's degree in Applied Science.

CORPUS CHRISTI, Texas — A gunman killed in a shootout with officers Monday morning outside the federal courthouse in Dallas was identified as 22-year-old Brian Isaack Clyde, a man with ties to the Corpus Christi area.

Clyde graduated in May from Del Mar College with an Associate in Applied Science degree in Nondestructive Testing Technology.

It was just before 9 a.m. Monday when authorities said Clyde opened fire on the Earle Cabell Federal Building in Dallas. Footage of the shooting appears to show Clyde firing inside the building from outside while wearing tactical gear.

Witnesses said they heard more than 10 shots fired before Clyde was shot by police. Police said he died while being transported to a Dallas hospital.

College officials said he was recognized as an Outstanding Academic Student at the Annual Recognition Ceremony held by Del Mar College in April of this year. He posted on his Facebook page, which was deactivated Monday afternoon, about his education and his apparent appreciation for firearms.

In one post on his Facebook page, Clyde showed what appeared to be several magazines, writing, "I decided to finish getting all of my mags. 2 40 rounders and 8 30 rounders total. A tad bit late though since everyone is going over to 7.62 nato because level 4 plates are now widely available and affordable and will stop almost anything."

In another Facebook post from last weekend, Clyde said on video "I don't know how much longer I have, but the (expletive) storm is coming."

Clyde served in the U.S. military from Aug. 10, 2015, until he was discharged February 17, 2017. He then went to college and ended up going to Del Mar College.

Prior to his time in Corpus Christi, Clyde graduated in 2015 from the Leander Independent School District's Vandegrift High School, which is in the Austin area. He was a member in the school's JROTC program.