Transcript for California Man in Coma After Police Altercation, Family Says

32 year old Vincent Valenzuela is in a medically induced coma. After an altercation with Anaheim police it happened Saturday morning nearest 7-Eleven on Broadway in magnolia. Police say they received a call of a suspicious man who followed a woman home. Officers confronted Valenzuela who they say was in possession of narcotics paraphernalia. And resisted arrest. While they were trying to take him into custody he could go into medical distress. The officers illegally performed life saving efforts called for Anaheim fire rescue came paramedics also performed. First aid transport in the hospital. Family members say witnesses told them Valenzuela was taser by the officers and went into cardiac arrest Albany. Somebody can come forward where that video. So we can see what really happened because this 7-Eleven and manager was not very cooperative with us he refused because apparently he will only give it to the police. The family and their attorneys believe this was a case of police brutality there always gonna do this and those gonna give these sensational stories of how it went down. I need to see evidence felons Willis family especially his nine year old son hope he'll pull through. We want. To view T Anthony. Basketball. Fans are going meat yeah. Police say they can't comment on whether he was taser to the officers were wearing body cameras. The footage from those cameras has been provided this attorney's office and it has been verified that the cameras are activated to tiny incident occurred. The office of independent review and the district attorney's office are now investigating the use of force. In Anaheim Melissa McBride a BC seven Eyewitness News.

This transcript has been automatically generated and may not be 100% accurate.