he s handcuffed and thrashing. at 5:03 a.m., two police officers tase him simultaneously. while on the ground, lambert tells the officers that he s used drugs. i just did cocaine, man. i just did cocaine. reporter: in total, three officers fired tasers at lambert. it shows the three officers used their tasers 21 times over the next 16 minutes. his attorney claims, in total, lambert received 79 seconds of electric shock. but tasers don t always make a fuel connection and cnn cannot independently confirm how much shock lambert actually received. at 5:19, police drive lambert to the county jail. at 5:28 a.m., police begin cpr but it s too late.