California, and a few chapters were created along the East coast at Ivy League Schools. By 2012, MECHA had more than 500 chapters throughout the U.S. Student groups such as these were initially concerned with education issues, but their activities evolved to participation in political campaigns and to various forms of protest against broader issues such as police brutality and the U.S. war in Southeast Asia. The Brown Berets, a youth group which began in California, took on a more militant and nationalistic ideology. The UMAS movement garnered great attention in Boulder, Colorado after a car bombing killed several UMAS students. In 1972, UMAS students at the University of Colorado Boulder were protesting the university's attitude towards UMAS issues and demands. Over the next two years hostilities had increased and many students were concerned about the leadership of the UMAS and Chicano movements on the CU Boulder Campus. On May 27, 1974, Reyes Martinez, an attorney from Alamosa, Colorado, Martinez's girlfriend, Una Jaakola, CU Boulder alumna University of Colorado Boulder, and Neva Romero, an UMAS student attending CU Boulder, were killed in a car bombing at Boulder's Chautauqua Park. Two days later another car bomb exploded in the Burger King parking lot at 1728 28th St. in Boulder, killing Francisco Dougherty, 20, Florencio Grenado, 31, and Heriberto Teran, 24, and seriously injuring Antonio Alcantar. It was later determined both explosions were caused by homemade bombs composed of up to nine dynamite sticks. Most of the victims were involved in the UMAS movement in Boulder, Colorado. They came to be known as Los Seis de Boulder. Many students in the UMAS and Chicano movement believed the bombing was directly correlated to the students' demands and rising attention on the Chicano movement. An arrest was never made in connection with the car bombing. A University of Colorado Boulder Master of Fine Arts student, Jasmine Baetz, created an art exhibit in 2019 dedicated to Los Seis de Boulder. The art exhibit is a seven-foot-tall rectangular sculpture that includes six mosaic tile portraits. The depiction of each activist faces the direction in which he or she died. It currently sits in front of the TB-1 building east of Macky Auditorium on the CU-Boulder campus. Baetz, a Canadian, had by chance seen the film Symbols of Resistance, a documentary about Los Seis de Boulder, in 2017. She became inspired to create a piece of art