Tech entrepreneur Beto Altamirano’s San Antonio mayoral campaign raised $112,000 between Jan. 1 and June 30, putting him well ahead of the three other challengers to so far enter the race, according to campaign finance reports released Monday. Altamirano, a political outsider, launched his campaign in May at a well-attended Southtown rally. Of the total amount his campaign has pulled in through June 30, $42,000 came from outside donors.