delivered the Opinion of the Court.
Introduction
The prosecution brings this interlocutory appeal pursuant to C.A.R. 4.1. The appeal challenges the trial court's order to suppress statements made by defendant Maurice Martin while he was being questioned at the Aurora Police Department regarding a shooting that had taken place the previous day. The trial court granted Martin's motion to suppress, ruling that he did not waive his Miranda rights before questioning. However, upon review of the video recording of his interrogation, we hold that, under these particular facts and cireumstances, Martin impliedly waived his Miranda rights. Although Martin did not express his waiver verbally, his course of conduct indicated a knowing, intelligent, and voluntary waiver of his rights. Martin voluntarily went to the police station to discuss a shooting. He was advised of and acknowledged each of his Miranda rights, either by word or by a nod of his head. He answered officers' questions without hesitation for almost an hour and forty-five minutes. Despite breaks in questioning, Martin did not choose to assert his rights until the officers told him that witnesses had identified him as the shooter. Accordingly, we reverse the trial court's suppression order and remand for further proceedings consistent with this opinion.
Facts and Procedural History
Defendant Martin is charged with two counts of first degree murder and five counts of attempted murder,. These charges arise out of a shooting that took place on the afternoon of January 19, 2009, in Aurora, Colorado. According to several witnesses, the shooting was the result of an altercation among a group of young men on a street corner. The altercation escalated and one of the young men fired his weapon, hitting and killing a bystander, Ms. Shunda Jackson. At *333 least two witnesses identified Martin as the shooter.
The day after this shooting, Martin reported to the Aurora Police Department along with his mother and step-father. During questioning, Martin stated that he reported to the station because his mother told him that the police were looking for him and she urged him to resolve this situation by turning himself in to tell his story. At the police station, Martin was interrogated by two officers for almost two hours. The entire interrogation was recorded on DVD. We base the following account on our review of that video.
After arriving at the station, Martin was placed in an interrogation room, where he waited for officers to question him. After a few moments of silence, two officers entered the interrogation room. They introduced themselves and asked Martin for basic information, such as his name, address, and phone number. The officers told Martin that they had wanted him to come to the station because his name came up in connection with a shooting that had taken place the previous day in Aurora, Colorado.
The officers then told Martin that he was in custody, and one of the officers read Martin his rights. After each sentence, the officer paused and asked Martin to confirm that he understood, by asking "Do you understand that?" or "Okay?" Each time, Martin confirmed his understanding, either verbally or by nodding his head. Neither officer asked Martin if he wished to waive his rights or if he wanted an attorney during questioning.
After reading Martin his Miranda rights, the officers immediately initiated the interview. The officers began with simple questions about Martin's life, asking where he went to high school and with whom he generally spends his time. Martin answered these questions, appearing relaxed and cooperative. After approximately seven minutes of introductory questions, the officers asked Martin to describe the previous day. Although he skipped details, Martin answered these questions without wavering. At several points, he spoke continuously for more than a minute without the officers asking any questions.
Initially, Martin admitted that he heard shots fired, but he maintained that he had nothing to do with the altercation or the shooting. The officers then asked Martin to draw a map of the area where the shooting took place and to describe where he was during the shooting. Martin complied without any hesitation. For more than two minutes, Martin gave an uninterrupted account of where he was immediately before, during, and after the shooting. While Martin spoke, the officers asked no questions.
Eventually, the officers confronted Martin by telling him that at least two witnesses had identified him as being involved in the incident. Martin was initially reluctant to change his story, but he ultimately admitted that he was involved in the altercation that led to the shooting. However, he consistently maintained that he did not pull the trigger.
After approximately one hour of conversation, the officers took a DNA sample from Martin. Then they left Martin alone in the interrogation room while they took the sample to the lab. After ten minutes, they returned and took Martin to the bathroom. Upon his return from the bathroom, Martin was left alone in the interrogation room for another ten minutes. When the officers returned, questioning resumed, and Martin continued to cooperate. He signed the map that he had previously drawn of the erime scene.
Martin's calm demeanor persisted until the officers told him that at least two witnesses had identified him as the shooter,. At this point, after having spoken with the officers for an hour and forty-five minutes, Martin became upset and began to ery. The officers continued to ask questions, but Martin continued to state that he had not pulled the trigger. Eventually, Martin refused to answer any more questions. He stated, "I'm not gonna say nothing else, man, until I get a lawyer." The interrogation then ended immediately.
Prior to trial, Martin moved to suppress the statements he made to the officers on the basis that he never waived his Miranda rights. The trial court agreed. The trial court noted that Martin never expressly waived his rights and concluded that no waiv *334 er could be inferred from his conduct because the officers began questioning Martin immediately after reading him his rights. The court stated that Martin "would have been hard pressed to find the time to fully appreciate the rights he would be giving up or find an opportunity to assert those rights while under the pressures of interrogation." The trial court held that Martin "was not provided the full opportunity to exercise the privilege against self-incerimination," and that his "right against self-incrimination was never knowingly and voluntarily waived." Accordingly, the trial court granted his motion to suppress. This interlocutory appeal followed.
Analysis
The prosecution argues that Martin's statements should not have been suppressed because his actions implied his intent to waive his Miranda rights. More specifically, they argue that he knowingly, intelligently, and voluntarily relinquished his rights when he chose to answer the officers' questions. Martin counters that the officers never gave him an opportunity to consider his rights and that the attendant facts do not demonstrate that he intended to waive his rights. Ultimately, our analysis leads us to agree with the prosecution. 1
Standard of Review
In reviewing a suppression order, we are presented with mixed questions of law and fact. People v. Adkins,
We review the validity of a Miranda waiver under a de novo standard. People v. Clayton,
The prosecution bears the burden of proving by a preponderance of the evidence that the suspect was properly advised of his rights and that he waived them knowingly, intelligently, and voluntarily. Colorado v. Connelly,
An express written or oral statement of waiver is not always necessary. North Carolina v. Butler,
*335 Martin Was Properly Advised of His Rights
The officer who interviewed Martin advised him of his Miranda rights by reading from a card. After each sentence the officer paused, asking either "Do you understand that?" or "Okay?" Each time, Martin affirmed, either verbally or by nodding his head, that he understood. As such, we agree with and defer to the trial court's findings that Martin was properly advised of his Miranda rights. This finding satisfies the first aspect of our waiver inquiry.
Martin Waived His Rights Knowingly, Intelligently, and Voluntarily
Now we must determine whether Martin actually waived his rights knowingly, intelligently, and voluntarily. Clayton,
Nevertheless, Martin argues that the particular facts and cireumstances of his case do not demonstrate implied waiver. More specifically, he argues that, because the officers began asking questions immediately after his advisement, he was not given the full opportunity to consider his rights and did not waive them knowingly. Neither the facts nor the law support this argument.
The cireumstances surrounding the interrogation show that Martin's decision to speak to the officers was knowing and voluntary. Martin voluntarily came to the station to speak with police about the shooting. He was cooperative throughout the interview. The officers used no coercive tactics to obtain his waiver. Martin consistently answered questions and drew and signed a diagram of the crime scene.
Regarding Martin's opportunity to consider and exercise his Miranda rights, our research reveals no case law suggesting that officers must pause for a specified period of time to allow a suspect to consider his rights before asking questions. Rather, our case law suggests that it is preferable for officers to start questioning soon after giving a Mi-ramda advisement. See Billings v. People,
Initially, the officers did not ask questions likely to elicit incriminating statements. See People v. Madrid,
Martin was left alone for twenty minutes during the interrogation but did not exhibit any increased reluctance to speak with the officers after these two breaks. The first thing he did after the second break was sign the map of the crime seene that he previously drew. If Martin used this time to consider his rights, then he did not choose to exercise them until later in the interrogation.
When Martin finally did invoke his rights, he told the officers, "I'm not gonna say nothing else, man, until I get a lawyer." Martin invoked his rights clearly and definitively at this point. Absent a second advisement, Martin's invocation of his rights at this point in the interview supports our conclusion that he understood and was aware of his Miranda rights. By responding cooperatively to police questioning about the shooting for close to two hours after being adequately advised of his rights, Martin's course of conduct exhibits a clear intent to waive his Miranda rights.
In light of the cireumstances discussed above, we conclude that Martin validly waived his Miranda rights. Martin came to the station voluntarily and told the police that he wanted to tell his story. He was properly advised of his rights before being questioned. He acknowledged that he understood these rights. He then answered the officers' questions without hesitation for an hour and forty-five minutes. During this time, Martin had several opportunities to pause and consider his rights, but he did not choose to invoke his rights until the officers confronted him with the fact that witnesses had identified him as the shooter. Hence, we hold that, under these particular facts and cireumstances, Martin waived his Miranda rights knowingly, intelligently, and voluntarily.
Conclusion
For the reasons stated above, we reverse the trial court's suppression order and remand this case to that court for proceedings consistent with this opinion.
Notes
. For the purpose of our analysis, we assume without deciding that Martin was in custody while being interrogated. A Miranda violation may only be found when the defendant was in custody while being interrogated. Since the trial court suppressed Martin's statements based on a Miranda violation, it necessarily concluded that Martin was in custody. The facts strongly support the conclusion that Martin was in custody. There was an arrest warrant for Martin out of Gilpin County; the officers twice told Martin that he was in custody; and Martin was questioned by two officers for almost two hours in a small, windowless room in the police station.
