LOS ANGELES , California ( CNN ) -- Krishna Rajarman 's classmates and friends remembered him Tuesday as a mentor and scholar who preferred to go home on weekends to spend time with his younger brothers than party on campus . Krishna Rajarman , a Fulbright Scholar and honors student , was a junior at UCLA . `` We asked him , 'Why not stay a weekend because we might do something fun ? ' `` said Ashwin Bhongir , Krishna 's roommate and childhood friend . `` He said , ' I want to be here for my brothers . I like to spend time with my brothers , it 's important . ' '' Krishna , a 19-year-old junior at UCLA , a Fulbright Scholar and an honors student , was found Monday fatally shot at his parents ' home in suburban Los Angeles . Police said his father killed the teen , his two younger brothers , ages 7 and 12 , his grandmother and mother . Karthik Rajaram , a 45-year-old unemployed financial services expert , then killed himself , police said . The six bodies were discovered in their neatly tended home in an upscale suburb 20 minutes outside Los Angeles on Monday . A neighbor called police to report that the wife had failed to pick her up to take her to her job . Inside the house , police also found letters from the father explaining that mounting financial pressure had led him to kill . Fraternity member Vim Mahadev remembered Krishna as a devoted L.A. Lakers fan who occasionally mentioned family problems , but nothing unusual . `` Nothing ever came up serious , '' said Mahadev . `` It was mostly his dad , about financial problems . But most of the time it was how he was his hero because he was intelligent and he always knew the right decisions to make . `` It 's just so ironic . '' Krishna 's friends Bhongir and Nahel Patel grew up around the Rajaram family and told CNN they never saw signs of family turmoil during their teenage years . `` I knew his family very well , and every time I went there , it was one of the most welcoming homes I 've ever been to , '' said Bhongir . `` It was always a fun loving place to be . '' `` He was one of the most promising friends that I ever knew , he was literally the smartest person I 've ever known , '' said Bhongir . `` He was going to make it . '' Bhongir and Nahel , both business economic majors at UCLA , said Krishna 's father was a role model to them . Krishna had wanted to follow his father 's footsteps in studies and career . The father received his MBA from UCLA in 1987 , according to UCLA spokesman Phil Hampton . Police said he went on to work in a financial holding company and for major accounting firms , such as Price Waterhouse . As a freshman , Krishna joined the campus co-ed fraternity Delta Phi Beta , organized by South Asian students . Fraternity member Natasha Parikh said she was one of Krishna 's closest friends . `` I just talked to him on Wednesday , and he was so excited about the new recruits we were having , '' she said . `` He was so excited about this year , and it 's so painful that he ca n't be here to experience the rest of our time at UCLA . '' `` He really did n't talk about his personal life ; I always saw him as a happy guy who never once said he was going through any major difficulty , so this has come as a complete shock . ''
Krishna Rajarman went home on weekends to be with family rather than party . Friends say he was committed to mentoring his two younger siblings . Police : He had been arrested in the past for drug possession and theft, but police said they did not know if that was related to this incident or a separate case involving an assault at another party. Friend describes Krishna : `` He was literally the smartest person I 've ever known ''