Plainclothes BART officers noticed a male breaking a second story window of a building from the inside of the building at 21st/Webster Street. Citizens reported that the male was a burglary suspect who was trying to escape the building. OPD arrived and created a perimeter around the building. Hours later, they requested a BART K-9 and one responded. During a search of the building with the K-9, a suspect was located and taken into custody.